Welcome to the 4th Player2 NPC Jam!
This is a global game jam inviting developers to build AI-powered characters in any game engine using the completely free Player2 API.
The Player2 API makes it extremely simple for developers to add voices with text-to-speech, conversation history memory, and other cool features to your characters to help bring them to life!
Your challenge is to create NPCs that think, react, and adapt in engaging and innovative ways. Games like Suck Up! where you, a vampire, convince strangers to go home with you to suck their blood and AI2U, where you talk to an anime girl who's dangerously in love with you are good examples.
Prizes:
$1,500 - OVERALL GRAND PRIZE WINNER
You will also win a free video promoting your game on Player2's social channels (100K+ followers)!
$600 - Best Web Game (A web game playable on our site)
This prize is reserved for a playable web game on the player2 site
$600 - Best AI Story
This prize is reserved for AI stories built with our web tool
$600 - Best AI Mod
This prize is reserved for AI Mods
$300 - Next six places
*Playable on the player2 site means it is a web game with a game build uploaded to the player2 site through the developer portal
*Mobile means the game can be played through a browser on mobile devices with controls through touch screen without a mouse and keyboard
REQUIREMENTS
- Join our Discord to find teammates and for technical support with the API. We have over 14,000 members and a team to help you with any bugs! Make sure to click the "I am in an official Player2 Game Jam." button to get your role.
- Use any game engine of your choice to make your game, and mod any game you want to mod!
- Upload your game to itch and to
- Follow the submission rules below.
Judging Criteria
We’ll be judging entries on these categories:
- "Theme" (how well does the game incorporate NPCs? Is it a creative interpretation of the theme?)
- "Fun" (is it entertaining to play? How creative is the game?)
- "Stability" (how stable is the build?)
Technical & Design Reminders
Don’t rely on LLMs alone. Use AI to augment your NPCs’ dialogue, memory, or decision-making, but underpin everything with explicit game logic.
General rules:
- Be respectful and supportive.
- Follow itch.io’s terms of service.
- Build your game in any engine you choose.
- Provide a playable demo or link by the deadline, following the submission rules.
- Communicate with your team if you have to step away from the jam.
- Compete fairly—no sabotage or harassment.
- AI-generated game, art and assets are permitted.
- Use only assets with appropriate commercial licenses and honour their terms.
- NSFW not allowed. (If you won't show it to co-workers, parents don't make it here.)
Submission rules
Your game must use the Player2 web API correctly, visit https://player2.game/profile/developer for more details and follow the instructions there. You can build AI stories, Indie Games or AI mods.
To use the web API, you need to create a draft game under https://player2.game/profile/developer. Then you can find your game client ID in your developer dashboard next to your game’s name.
If you are building a game from scratch it is recommended that you use our unity/godot engine plugins. If you are using our Unity / Godot / Defold AI NPC engine, the authentication and health check will be sent for your game automatically.
You can also build AI stories with our web tool; the API will be set up automatically. Tutorials on how to use the web api, Unity, Godot and Defold engine can be found in the doc/README of each engine’s repository.
Multiple entries are allowed, bug fixes after the deadline are allowed.
When you finish building, use the following steps to submit the game:
1. Publish your game anywhere you want to publish, this can be Steam, Nexus, CurseForge, Itch, app store, player2 etc.
2. Submit the game through the player2 developer portal https://player2.game/profile/developer. If you build a web game, you must also submit the game to our website in the developer portal.
3, Submit the game through itch to this game jam with links/reference to where you published the game and what your player2 game page/name is.
Inspiration
Check out popular games on our platform, submissions to previous jams for inspiration
https://itch.io/jam/ai-npc-jam
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