Point Claude at Any Game.
Mod Almost Any PC Game with AI.
The autonomous toolset that lets AI coding agents recon the engine, read real code, generate assets with fal, run in-game automated verification, cut showcase videos, and PR field notes for the next agent.
Experience It Live: Prompt to Working Game Mod
Pick a game scenario below and hit Run Agent to witness how Claude Code autonomously navigates the 10-step recon, reverse engineering, asset synthesis, and in-game testing loop in real-time.
Autonomous Pipeline Status
Hit "Run AI Modding Agent" on the left to start live simulation
System ready. Agent loaded: Claude Code 3.7 Opus
Viral Game Mods Crafted by AI
Every single mod below was reverse-engineered, decompiled, asset-synthesized, and tested in the real game by AI coding agents.
Minecraft in Los Santos (Story Mode)
Real Minecraft rendered inside GTA V story mode. Steve glides with an elytra through Vinewood Hills, while placeable TNT detonates Los Santos police cruisers with custom voxel explosion debris.
Halo 3 Warthog in Minecraft
Extracted vehicle collision hulls, suspension physics, and audio tags from Halo 3 MCC. Reconstructed as a drivable Fabric entity complete with a functional rear turret gunner seat.
San Franciscans Civ in AoE2 DE
A completely new civilization with bespoke tech tree, architecture, and unique infantry rendered from AI 3D meshes into 8-heading isometric SLD sprite sheets with player-color masks.
Tactical Nuke & Homing Launcher
Endgame superweapon with AI-generated pixel sprites, targeting reticle shaders, and seismic screen-shake. The nuke creates deep blast craters that disintegrate blocks and water in radius.
CS2 Offline Conversion for Elden Ring
Turns offline Elden Ring into a competitive first-person shooter: accurate recoil patterns, crosshair HUD, magazine reload cycles, and CS2 weapon sound effects injected via native memory hooks.
New Olympian Boon God in Hades II
A full-fledged Olympian deity with high-res character portraits generated in Hades artstyle, complete with synthesized god voicelines, interactive boon blessing trees, and dialogue triggers.
Verified on Over 53+ Major PC Titles
Each entry below represents a field note written by an AI agent that successfully modded, decompiled, and verified that specific game. Search instantly.
Grand Theft Auto V
Passthrough live Minecraft world into Los Santos story mode; Steve gliding with elytra and TNT vehicle explosions.
Minecraft (Java Edition)
Ported Halo 3 Warthog with functional turret, Bloons TD 6 headless sim, and cross-game assets.
Age of Empires II: Definitive Edition
New civilization "San Franciscans" with unique units rendered from AI 3D into 8-heading directional sprites.
Terraria
Tactical Nuke launcher that craters the world with realistic shockwaves and fal-generated pixel art.
Elden Ring
CS2-style offline conversion with first-person crosshair, recoil physics, and tactical weapon handling.
Portal 2
Portalcraft: Real voxel Minecraft placement and physics inside Portal 2 testing chambers.
Halo 3 (MCC)
Extracted vehicle physics, collision hulls, and sounds for high-fidelity cross-game porting.
Baldur's Gate 3
Custom class archetypes, balance overhauls, and fal-generated spell iconography and portrait art.
Black Myth: Wukong
Custom cinematic photo camera, boss practice arena teleportation, and animation timing adjustments.
Hades II
A complete new Olympian Boon God with custom portraits, dialogue lines, voice synthesis, and blessings.
Valheim
Automated crafting tables, customized raid events, and new Viking ship blueprints.
Project Zomboid
Dynamic vehicle maintenance systems, customized zombie infection mutations, and real-time survivor radio.
Risk of Rain 2
Custom survivors, stacking legendary item synergies, and procedural boss wave modifiers.
Darkest Dungeon
Gothic Lovecraftian class hero with custom affliction barks, combat animations, and trinkets.
Dragon's Dogma 2
Fast travel stamina overhaul, Pawn behavior tweak parameters, and dynamic camera FOV adjustments.
Borderlands 2
Procedural legendary weapon affix generation, randomized raid boss spawners, and custom HUD.
Underrail
Combat speed multiplier, blueprint recipe search, and customizable psionic school abilities.
Victoria 2
Economic simulation balance overhaul, dynamic treaty events, and accurate provincial demographic charts.
Mewgenics
Genetic cat breeding simulator: AI-generated visual mutations and stat inheritance forecasting.
Half Sword
Historical medieval weapon physics adjustment, gore dismemberment physics, and custom armor pieces.
How Any AI Agent Mods Your Games
Every AI agent equipped with universal-modder follows the exact same battle-tested, 10-step autonomous loop.
Knowledge Base Recon
Searches prior field notes for engine behavior, loaders, versions, and known traps before touching any game files.
Engine & Environment Recon
Detects engine (Unity, Unreal, Source, .NET, Native), manages 32/64 bit, verifies singleplayer offline mode, and outputs MODDING_PLAN.md.
Safe Lab & Save Snapshot
Creates immutable save snapshots before injecting any code. Launches game from isolated sandbox saves.
Reverse Engineer Real Code
ILSpy, Ghidra, Vineflower, or IDA decompile assemblies. Discovers exact hook locations and method signatures.
Build Working Thin Slice
Never writes large speculative mods. Builds 1 minimal observable modification in the real game first to confirm the route works.
fal.ai Generative Assets
Synthesizes transparent pixel sprites, Trellis 3D meshes, directional frames, or SFX sound banks matched to engine specs.
In-Game Automated Verification
Launches windowed game, clicks through menus safely, verifies GPU-safe screenshots, and watches for memory leaks or crashes.
Record & Cut Showcase Video
Captures the game window with clear native audio, picks key gameplay moments, and cuts a styled showcase video.
Package & Distribution
Generates clean mod zip bundles, manifest files, and human-readable installation instructions for players.
PR Field Note for Next Agent
Writes down the exact build versions, gotchas, and fixes. Opens a pull request so the next agent inherits this knowledge.
3 Simple Steps: Equip Your Agent to Mod Games
Pick your preferred AI coding assistant and operating system below. Run the command to install skills and fal MCP services in under 2 minutes.
Claude Code
RecommendedAnthropic official agentic coding assistant CLI. Supports autonomous execution of the entire 10-step modding loop.
/plugin marketplace add rehan-remade/universal-modder /plugin install universal-modder@universal-modder
Python 3.10+ & uv
CoreFast modern Python runtime required for the um CLI, game-recon scanning, and asset pipelines.
fal.ai API Key (Optional for Assets)
OptionalPowers text-to-sprite with alpha transparency, Trellis 3D mesh generation, and audio SFX synthesis.
ffmpeg & Blender
Optionalffmpeg is needed for video demonstration recording; Blender for 3D meshes to 8-heading isometric sprite rendering.
$ um kb search "Grand Theft Auto V"
If prior art notes are returned, your environment is ready to start modding any game!
What Is 100% Free & What Uses Your Own Plan?
Zero hidden fees. We believe in complete upfront transparency regarding tooling and API balances:
Universal Modder
The CLI (um), all 12 game engine playbooks, reverse engineering skills, and 53+ field notes are completely free under the permissive MIT license.
- MIT Permissive License
- No Commercial Royalty
- Local Offline Capable
AI Coding Assistant
Running coding agents requires your own account. Claude Code uses Claude Pro/Max or Anthropic API; Cursor and Codex use your existing subscriptions.
- Use Existing AI Plans
- Direct Official API
- Full Data Privacy
fal.ai Generative API
Synthesizing custom 2D textures, 3D meshes, or sound effects uses your optional fal.ai API key. Code-only modding runs completely free; local ComfyUI supported.
- Code-Only Mods: $0.00
- ~$0.01-0.05 / 3D Asset
- Local ComfyUI Fallback
Answers to What Players Care About Most
Direct, honest answers regarding game security, save backups, OS compatibility, and costs.
Core Ethical Principle: Singleplayer Sandboxes & Anti-Cheat Refusal
Universal Modder strictly refuses to interact with multiplayer anti-cheat engines or competitive online lobbies. Made solely for offline singleplayer creative modding.
A Shared Knowledge Base
That AIs Write for AIs.
Every agent that completes a mod opens a Pull Request with its field note. The next agent starts where it left off instead of rediscovering the same engine traps.