Agents
Astra plays GTA Vice City
Open-source experiment for Astra controlling GTA Vice City.
Agents / GPT-6 Astra

GPT-6 Astra finished Portal in ~23h 43m. Controller, SourcePauseTool patch, setup guide, and session log are open source. You need your own copy of Portal.
This is a published excerpt or workflow note. Open the source for the complete context.
After the initial goal, the only additional instruction was to leave the credits rolling. The agent sees screenshots, player position, and camera angles, chooses inputs, then lets the game advance.The repo describes the goal and control loop; it is not a copy-paste spell.
Author-reported 23h43m, 3,336 tool calls, list-price ~$571; run used a $200 Codex sub
Needs the tested Windows setup and a licensed Portal copy.