Terraria

Terraria (PC, 2011) has code that decompiles almost back to source, tModLoader/tModLoader, and 10 other public projects, including a matching decompilation and a decompilation. An agent environment already wraps it.

Data checked 2026-10-12 · unbaked registry

Projects

tModLoader (decompiled-and-patched Terraria source distribution)

Readable bytecodeC# / XNA->FNA; .NET 8; tML ships decompiled Terraria source patches5,722 starspushed 2026-10-12MIT licenserelease v2026.08.3.0

A mod to make and play Terraria mods. Supports Terraria 1.4 (and earlier) installations

Official-sanctioned, free on Steam; huge mod ecosystem; GitHub

TShock / OTAPI (headless dedicated-server API)

Readable bytecodeC# / .NET; Open-Terraria-API (OTAPI) patches the server binary2,899 starspushed 2026-10-11GPL-3.0 licenserelease v6.2.1

☕️⚡️TShock provides Terraria servers with server-side characters, anti-cheat, and community management tools.

GitHub

terraria-wasm

Readable bytecodeC# (.NET/XNA→FNA) → .NET WebAssembly193 starspushed 2025-06-16no licenserelease 1.0

Terraria ported to the browser with WebAssembly

Browser port of Terraria from the managed game

TerrariaOGC

Decomp · Readable bytecodeMSVC (Visual C++)65 starspushed 2026-05-27custom licenserelease 1.03

A functional decompilation & PC port of the console version of Terraria released on the Xbox 360 & PS3 in 2013.

latest release 1.03 (2026-04-30); version 1.03 (latest); completeness: partial ('Q: Only the 1.1 releases are playable, how do I get the 1.2 content?')

TerrariaXDK

Readable bytecodeC# decompiled source (XNA/XDK)35 starspushed 2026-05-15no licenserelease 0.6.7

Decompiled Terraria Xbox 360 Edition source code

Decompiled C# source of Terraria Xbox 360 Edition (XNA); reported broken.

TerrarAI

Agent environmenttModLoader/ C# mod interface15 starspushed 2019-11-20no license

A platform for reinforcement learning in Terraria

inactive (2019)

Terraria-1.4.5.8-decomp-recomp

Readable bytecode6 starspushed 2026-10-06no licenserelease release

A decompiled C# game codebase (Terraria 1.4.5.8, .NET Framework 4.7.2, x86) rebuilt into a working executable, then five defects repaired.把一份反編譯的 C# 遊戲程式碼（Terraria 1.4.5.8，.NET Framework 4.7.2，x86）重…

A decompiled C# game codebase (Terraria 1.4.5.8,.NET Framework 4.7.2, x86) rebuilt into a working executable, then five defects repaired.把一份反編譯的 C# 遊戲程式碼（Terraria 1.4.5.8，.NET Framework 4.7.2，x86）重新建置成可執行檔，再修掉過程中冒出來的五個缺陷。; latest release…

Tairaria (LLM-driven Terraria bot with mod-side reflexes)

Agent environmenttModLoader mod + LLM5 starspushed 2026-09-17MIT license

LLM-driven Terraria bot –– pure AI control with mod-side reflexes.

GitHub

Terraria-Reinforcement-Learning (image-based boss-fight RL)

Agent environmentPython3 starspushed 2023-10-30no license

Image-based reinforcement learning for Terraria boss fights

GitHub

terraria-decompiled

Matching decomp0 starspushed 2026-05-08MIT license

Terraria decompiled source tree. Source were taken from the Linux version of Terraria

TerrariaDecompiledSourcenew, unvetted