Two versions of the same model — Meta Muse Spark 1.3 and 1.2 — play Maniac Mansion Deluxe side by side, one pane each, from the same save at the same time.
Neither agent sees pixels. Both play through the ScummVM MCP server, which exposes the game as structured tool calls: what is in the room, what can be walked to, what can be picked up and used. Every decision is the model's own — no walkthrough, no hints, no human hands on the controls.
The run starts where the game does, on the kid selection. That screen is not a cutscene to be skipped: picking the team is each agent's first decision, and they make it themselves.
Maniac Mansion Deluxe is a free fan remake, built in AGS, of the LucasArts original.
Agents in this run, one instance each, in the opencode harness:
- Meta Muse Spark 1.3 (opencode)
- Meta Muse Spark 1.2 (opencode)
Recorded on 2026-09-10.
ScummVM is free software (https://www.scummvm.org/). The MCP server that lets an agent play through it: https://github.com/xavierhardy/scummvm-mcp
#retrogaming #scummvm #aiagents #adventuregame #maniacmansion #pointandclick #lucasarts
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