Old School RuneScape

Old School RuneScape (PC, 2013) has an open-source reimplementation, runelite/runelite, and 2 other public projects, including code that decompiles almost back to source. An agent environment already wraps it.

Data checked 2026-10-12 · unbaked registry

Projects

RuneLite (open-source Java OSRS client with plugin API)

Reimplementation · Readable bytecodeJava; deobfuscated/renamed client (injected mixins); cs2 scripts dump…5,483 starspushed 2026-10-07BSD-2-Clause license

Open source Old School RuneScape client

GitHub

osrs-pvp-reinforcement-learning (PPO self-play on a simulated RSPS)

Agent environmentPython PPO + Java RSPS simulation server184 starspushed 2024-02-11no license

Train a neural network to PvP in Old School RuneScape using reinforcement learning.

GitHub

fight-caves-rl (C Fight Caves simulator)

ReimplementationDeterministic C simulation of the 63-wave Fight Caves + PPO2 starspushed 2026-06-24no license

OSRS Fight Caves reinforcement learning — PPO agent that clears all 63 waves and kills TzTok-Jad at 94.9% peak rate from cold start

Active (2026-06)

What you need

You need your own copy of the game: these projects ship code only.

Agent environments

More on PC

GameMethodYearStarsLast push

PCMindustrySource releaseAgent environment201929k2026-10-11 PCosu!Source releaseReadable bytecode+1200719k2026-10-12 PCCommand & Conquer Remastered CollectionSource release202021k2025-01-16 PCRollerCoaster Tycoon 2ReimplementationAgent environment200216k2026-10-12 PCDune 2000Reimplementation199818k2026-10-11 PCAge of Empires IIReimplementation199914k2026-10-03 PCCataclysm: Dark Days AheadSource release201313k2026-10-12 PCCivilization VSource releaseReimplementation201011k2026-10-12

Found via RuneStar/cs2-scripts, runelite/runelite

GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.