If you read some isekai comic you may find a special trope, the holographic screen showing game stats and working like an interactive HUD. These are used by the main characters to unlock new abilities in some talent-tree.
Those titles aren't easy to be adapted into a D&D campaign because the main characters follow a different leveling-up and usually they are overpowered for D&D standars, and the worldbuilding is relatively simple where there is only one main menace or antagonist faction, the demon king.
Some times I imagined a D&D version of isekai manga. Of course it would be with the trope of being hit by a truck, but here I would add some piece of originality. The hit wasn't an accident but intentional because ... plot twist! the truck is an evil version of Optimus Prime, leader of autobots (Transfomers franchise). When this evil Optimus Prime wants to kill some human creates something like an energy field. This teorically should work like a desintegrator ray but the true effect is more like a teletransportation toward a parallel world.
An D&D PC using a holographic HUD? This could be a class, something that would need a lot of work and time, or like a magic item.
My idea is this fantasy interface wouldn't be used for combat but other uses like crafting, building (also placing traps like in a tower defense videogame) or trading (you hunt a monster and the meat, bones and skins are teletransported toward a shop within a town). Or could be used for investigation useful to search and analyze possible clues. Or it could be used to scan bodies of sick patients to craft medicines. Or it could use genetic engineering to create plasma fruits that could be eaten by vampires.
Perhaps this interface could benefit from the help of a virtual assistant like Cortana from Halo videogames. The interace could be used to record images and sounds, or to direct remote-control construct units. Could you craft modern firearms? maybe, they would be a "nerferd" version and time-limited like summoned monster allies. It would automatically disintegrate if an attempt were made to disassemble it for reverse engineering, and it also requires special alloys. (In real life, a firearm could deform or even melt from overheating if fired continuously.) If you want you could add some touch of analogic horror with some element style cursed videotape or yandere spirit who is too jealous to allow pretty females too near you.
time ago I asked Grok and now I have just asked ChatGPT a class.
CLASS: OPERATOR (Interface Architect / System User)
“The world is not a mystery: it is an interface waiting to be understood.”
The Operator is an isekai adventurer who accesses a Personal Technomagical System, visible only to him (or projected as holograms).He doesn't cast spells in the traditional way: he interacts with the world as if it were an editable system, within strict limits.He is neither an engineer nor a pure mage: he is a system operator.
DICE ROLL d8 MAIN CHARACTERISTIC Intelligence (system management) Secondary: Dexterity or Constitution
SKILLS Armor: Light Weapons: Simple, System (class) firearms Tools: Craftsman, calligrapher, or thief tools Savings: Intelligence, Wisdom Skills: Choose 3 from Investigation, Perception, Arcana, History, Stealth, Persuasion, Survival
BASIC INTERFACE FUNCTIONS (Level 1) 1. Pocket Inventory Store non-living objects. Capacity limited by level. Taking/putting away items is an additional action.
2. Environmental Analysis As an action:Scannning to try to find clues, traces, traps, and hidden creatures. Functions as a combination of Detect Magic, Investigation, and Survival. Does not reveal everything: displays incomplete data (“probability,” “risk”).
3. Universal Translation You understand spoken and written languages. It does not automatically decipher complex cultural codes.
SYSTEM MARKS (Level 2) The class's most iconic trait. Mark Types You can apply Temporary Marks by spending Power Points: Item Mark (Allies) Temporarily transforms a non-magical item into a magical one. Examples: Boots → Jump Weapon → +1 elemental damage Armor → temporary resistance Short duration (1–10 minutes or X uses).
Target Mark (Enemies) Weakens the enemy: Removes a resistance Converts immunity into resistance Applies temporary vulnerability Reduces advantages or bonuses Saving to resist.
Limit A limited number of active trademarks. Reapplying trademarks incurs increasing costs.
CONSTRUCTION AND CRAFTING (Level 3) You can craft entities or structures using the Interface. Types: Allied Constructs (automatons, light golems) Combat Plants (roots, spores, guardians) Structures: walls, floors, roofs, barricades These are not permanent.They degrade, consume Power points, or time.
TERRAIN CONTROL (Level 5) In combat you can: Create elevated areas Close off corridors Place traps (damage, slow, control) Tactically reshape the battlefield Not instant or unlimited → requires planning.
SYSTEM FIREARMS (Level 6) You can craft technomagic firearms: They always count as magic weapons. They do not consume spells. They have: a shot limit a reload time degradation They cannot be copied or dismantled.
SUBCLASSES (Level 3)
1. Combat Architect Battlefield Specialist. More traps, offensive markings, and crowd control. Ideal for tacticians and strategists.
2. System Invoker Specialist in constructs and allies. Can maintain multiple active entities. More support synergies.
3. World Analyst Master of research, tracking, and anticipation. Can “predict” enemy actions. Huge narrative bonuses.
4. Core Administrator More power points, less cost. Can modify minor system rules. Risk of overload or corruption.
HIGH LEVEL (11–20) Limited edition of local reality Complex structures (temporary fortresses) Marks that affect bosses Crafting of legendary, non-replicable artifacts Possibility of the System evolving… or demanding a price
IMPORTANT LIMITATIONS (for balance) ✔ Not everything is instantaneous ✔ Limited resources ✔ Interface dependency ✔ Vulnerable to mental interruptions ✔ Narrative risk (system corruption, observing entities)
ROLE IN THE GROUP Tactical Controller Flexible Support Explorer and Investigator “Living Toolbox”
---
My idea is to use the marks with a game mechanic like the incarnum soulmelds. Of course it would need a lot of playtesting but that is part of the fun when you create a homemade class.
How is this different from the Artificer? or a Creation Bard? or some kind of Druid/Wizard?
Most of the abilities you have could simply be reflavourings of existing abilities:
"scanning" = ritually casting Detect Magic & making an Investigation check. "universal translator" = ritually casting Comprehend Languages.
Artificers can create temporary magical items.
Creation Bard can create temporary non-magical objects
Druids and Wizards can manipulate the terrain in many way to alter the battlefield.
There are spells in D&D to do essentially everything you have listed, you could very easily make this character as a Wizard or Druid and just reflavour your spells as manipulating the world with your holographic projector, and your skill checks as asking your AI interface to do stuff for you.
Artificers create infusions but the operator creates marks/labels what work like 3.5 single-use magic runes or tatoos.
And the couterspells can't work in the same way.
Maybe the operator a little like a wizard but the class also has got a touch of monster trainer. The monster ally could be a construct or a plant, but also fey, elemental, monstruosity (the corpses of hunted beasts to create an abomination style necromorphs from "Dead Space" videogame) or undeads (really "deathless", a undead subtype who is healed by positive energy and hurt by necrotic damage) and using pieces of armours and clothings instead humanoid corpses).
And the operators could add labels to balms and bandages for magic healing. It would be slower than divine magic but in the rests after the encounters it can work.
You could say the operator is too close to the artificer and it may be partially right but the artificer is more like a mechanist working with tools to fix a motor and the operator is like a trader with a mobile calling a magitek version of Amazon to ask packs.
Maybe you can be hired by this delivery service like plague control because some times its demiplane working like a store shows signs of creatures style backrooms, SCP fiction or creepypaste, or new-weird fiction.
Also FYI you do realize the description you posted is like a million miles away from an actual class description. It's just a list of vague ideas rather than specific mechanics.
You also keep adding more and more 'things' it can do in each post - it is completely unclear what this class is supposed to be, is it a creation-bard-esque reality transmuter? It is a soul-manipulating necromancer? is it a befriender of animals/plants/monsters like a Druid/Ranger? is it a magi-techno engineer like an Artificier? is it a character with no special abilities and completely relies on magic items/technology? is it a natural-wisdom healer like a Ranger? those are all different identities that are incompatible with each other. A class needs to have a unique identity with a couple of things it does well, and some things it does poorly. That is the balance of the game : each class and thus character has strengths and weaknesses thus benefits from working together as a team with other characters.
A class that can't do anything in combat, and all their abilities rely on out-of-combat set-up is a terrible design, ambushes are common in D&D, and most of the time the player characters are going to the enemies rather than the enemies going to the player characters. This is why trap-based characters don't work despite the fandom loving the concept of trappers, because 75% of the time you have no opportunity to set up traps.
TBH this sounds like an Artificer subclass to me that has an emphasis on transmutation & conjuration spells & abilities.
This is simultaneously the most specific and random class I have ever bore witness to. The name is so misleading, when I hear the word operator, I think about some type of commander or overseer for the party, not really an Isekai class.
I feel like you gotta pick a broad theme and stick to it, the subclasses are the more specific flavours. Do you want the class to be a support class? What does it bring to the table that other classes don’t. Fighters are skilled warriors, Bards charismatic performers & Artificers are magical tinkerers, every class has distinct abilities that make them stand out from one another, what do you want that to be?
Are you trying to do a class where they can see parts of the narrative, are playing it like a video game or are they rewriting the world into their own story? Cause all you have is a generic Isekai ability that is always used due to trope norms and is never actually explored.
If you read some isekai comic you may find a special trope, the holographic screen showing game stats and working like an interactive HUD. These are used by the main characters to unlock new abilities in some talent-tree.
Those titles aren't easy to be adapted into a D&D campaign because the main characters follow a different leveling-up and usually they are overpowered for D&D standars, and the worldbuilding is relatively simple where there is only one main menace or antagonist faction, the demon king.
Some times I imagined a D&D version of isekai manga. Of course it would be with the trope of being hit by a truck, but here I would add some piece of originality. The hit wasn't an accident but intentional because ... plot twist! the truck is an evil version of Optimus Prime, leader of autobots (Transfomers franchise). When this evil Optimus Prime wants to kill some human creates something like an energy field. This teorically should work like a desintegrator ray but the true effect is more like a teletransportation toward a parallel world.
An D&D PC using a holographic HUD? This could be a class, something that would need a lot of work and time, or like a magic item.
My idea is this fantasy interface wouldn't be used for combat but other uses like crafting, building (also placing traps like in a tower defense videogame) or trading (you hunt a monster and the meat, bones and skins are teletransported toward a shop within a town). Or could be used for investigation useful to search and analyze possible clues. Or it could be used to scan bodies of sick patients to craft medicines. Or it could use genetic engineering to create plasma fruits that could be eaten by vampires.
Perhaps this interface could benefit from the help of a virtual assistant like Cortana from Halo videogames.
The interace could be used to record images and sounds, or to direct remote-control construct units.
Could you craft modern firearms? maybe, they would be a "nerferd" version and time-limited like summoned monster allies. It would automatically disintegrate if an attempt were made to disassemble it for reverse engineering, and it also requires special alloys. (In real life, a firearm could deform or even melt from overheating if fired continuously.)
If you want you could add some touch of analogic horror with some element style cursed videotape or yandere spirit who is too jealous to allow pretty females too near you.
time ago I asked Grok and now I have just asked ChatGPT a class.
CLASS: OPERATOR
(Interface Architect / System User)
“The world is not a mystery: it is an interface waiting to be understood.”
The Operator is an isekai adventurer who accesses a Personal Technomagical System, visible only to him (or projected as holograms).He doesn't cast spells in the traditional way: he interacts with the world as if it were an editable system, within strict limits.He is neither an engineer nor a pure mage: he is a system operator.
DICE ROLL d8
MAIN CHARACTERISTIC
Intelligence (system management)
Secondary: Dexterity or Constitution
SKILLS
Armor: Light
Weapons: Simple, System (class) firearms
Tools: Craftsman, calligrapher, or thief tools
Savings: Intelligence, Wisdom
Skills: Choose 3 from Investigation, Perception, Arcana, History, Stealth, Persuasion, Survival
BASIC INTERFACE FUNCTIONS (Level 1)
1. Pocket Inventory
Store non-living objects.
Capacity limited by level.
Taking/putting away items is an additional action.
2. Environmental Analysis
Item Mark (Allies)
Target Mark (Enemies)
Limit
As an action:Scannning to try to find clues, traces, traps, and hidden creatures.
Functions as a combination of Detect Magic, Investigation, and Survival.
Does not reveal everything: displays incomplete data (“probability,” “risk”).
3. Universal Translation
You understand spoken and written languages.
It does not automatically decipher complex cultural codes.
SYSTEM MARKS (Level 2)
The class's most iconic trait.
Mark Types
You can apply Temporary Marks by spending Power Points:
Temporarily transforms a non-magical item into a magical one.
Examples:
Boots → Jump
Weapon → +1 elemental damage
Armor → temporary resistance
Short duration (1–10 minutes or X uses).
Weakens the enemy:
Removes a resistance
Converts immunity into resistance
Applies temporary vulnerability
Reduces advantages or bonuses
Saving to resist.
A limited number of active trademarks.
Reapplying trademarks incurs increasing costs.
CONSTRUCTION AND CRAFTING (Level 3)
You can craft entities or structures using the Interface.
Types:
Allied Constructs (automatons, light golems)
Combat Plants (roots, spores, guardians)
Structures: walls, floors, roofs, barricades
These are not permanent.They degrade, consume Power points, or time.
TERRAIN CONTROL (Level 5)
In combat you can:
Create elevated areas
Close off corridors
Place traps (damage, slow, control)
Tactically reshape the battlefield
Not instant or unlimited → requires planning.
SYSTEM FIREARMS (Level 6)
You can craft technomagic firearms:
They always count as magic weapons.
They do not consume spells.
They have:
a shot limit
a reload time
degradation
They cannot be copied or dismantled.
SUBCLASSES (Level 3)
1. Combat Architect
Battlefield Specialist.
More traps, offensive markings, and crowd control.
Ideal for tacticians and strategists.
2. System Invoker
Specialist in constructs and allies.
Can maintain multiple active entities.
More support synergies.
3. World Analyst
Master of research, tracking, and anticipation.
Can “predict” enemy actions.
Huge narrative bonuses.
4. Core Administrator
More power points, less cost.
Can modify minor system rules.
Risk of overload or corruption.
HIGH LEVEL (11–20)
Limited edition of local reality
Complex structures (temporary fortresses)
Marks that affect bosses
Crafting of legendary, non-replicable artifacts
Possibility of the System evolving… or demanding a price
IMPORTANT LIMITATIONS (for balance)
✔ Not everything is instantaneous
✔ Limited resources
✔ Interface dependency
✔ Vulnerable to mental interruptions
✔ Narrative risk (system corruption, observing entities)
ROLE IN THE GROUP
Tactical Controller
Flexible Support
Explorer and Investigator
“Living Toolbox”
---
My idea is to use the marks with a game mechanic like the incarnum soulmelds. Of course it would need a lot of playtesting but that is part of the fun when you create a homemade class.
How is this different from the Artificer? or a Creation Bard? or some kind of Druid/Wizard?
Most of the abilities you have could simply be reflavourings of existing abilities:
"scanning" = ritually casting Detect Magic & making an Investigation check.
"universal translator" = ritually casting Comprehend Languages.
Artificers can create temporary magical items.
Creation Bard can create temporary non-magical objects
Druids and Wizards can manipulate the terrain in many way to alter the battlefield.
There are spells in D&D to do essentially everything you have listed, you could very easily make this character as a Wizard or Druid and just reflavour your spells as manipulating the world with your holographic projector, and your skill checks as asking your AI interface to do stuff for you.
Artificers create infusions but the operator creates marks/labels what work like 3.5 single-use magic runes or tatoos.
And the couterspells can't work in the same way.
Maybe the operator a little like a wizard but the class also has got a touch of monster trainer. The monster ally could be a construct or a plant, but also fey, elemental, monstruosity (the corpses of hunted beasts to create an abomination style necromorphs from "Dead Space" videogame) or undeads (really "deathless", a undead subtype who is healed by positive energy and hurt by necrotic damage) and using pieces of armours and clothings instead humanoid corpses).
And the operators could add labels to balms and bandages for magic healing. It would be slower than divine magic but in the rests after the encounters it can work.
You could say the operator is too close to the artificer and it may be partially right but the artificer is more like a mechanist working with tools to fix a motor and the operator is like a trader with a mobile calling a magitek version of Amazon to ask packs.
Maybe you can be hired by this delivery service like plague control because some times its demiplane working like a store shows signs of creatures style backrooms, SCP fiction or creepypaste, or new-weird fiction.
Also FYI you do realize the description you posted is like a million miles away from an actual class description. It's just a list of vague ideas rather than specific mechanics.
You also keep adding more and more 'things' it can do in each post - it is completely unclear what this class is supposed to be, is it a creation-bard-esque reality transmuter? It is a soul-manipulating necromancer? is it a befriender of animals/plants/monsters like a Druid/Ranger? is it a magi-techno engineer like an Artificier? is it a character with no special abilities and completely relies on magic items/technology? is it a natural-wisdom healer like a Ranger? those are all different identities that are incompatible with each other. A class needs to have a unique identity with a couple of things it does well, and some things it does poorly. That is the balance of the game : each class and thus character has strengths and weaknesses thus benefits from working together as a team with other characters.
A class that can't do anything in combat, and all their abilities rely on out-of-combat set-up is a terrible design, ambushes are common in D&D, and most of the time the player characters are going to the enemies rather than the enemies going to the player characters. This is why trap-based characters don't work despite the fandom loving the concept of trappers, because 75% of the time you have no opportunity to set up traps.
TBH this sounds like an Artificer subclass to me that has an emphasis on transmutation & conjuration spells & abilities.
This is simultaneously the most specific and random class I have ever bore witness to. The name is so misleading, when I hear the word operator, I think about some type of commander or overseer for the party, not really an Isekai class.
I feel like you gotta pick a broad theme and stick to it, the subclasses are the more specific flavours. Do you want the class to be a support class? What does it bring to the table that other classes don’t. Fighters are skilled warriors, Bards charismatic performers & Artificers are magical tinkerers, every class has distinct abilities that make them stand out from one another, what do you want that to be?
Are you trying to do a class where they can see parts of the narrative, are playing it like a video game or are they rewriting the world into their own story? Cause all you have is a generic Isekai ability that is always used due to trope norms and is never actually explored.