The AppID commit claimed the switch off Spacewar meant a Steam account
now had to have Red Planet on it, and that an account without it would
drop to the TCP fallback. That is wrong, and it was never tested - it was
reasoned from how AppIDs work in general and written down as fact, in the
handbook, the environ.ini template, the README and the three-machine test
doc.
Cyd checked it the direct way: put 5108000 into an older dist and ran it.
It behaved exactly as it had under 480. SteamAPI_Init does not check
entitlement; steam_appid.txt only tells the API which app it is. The one
real difference is that the Steam client now names Red Planet instead of
Spacewar.
So all four places now say that, and say nothing about entitlement. The
part that was always true is kept: a copy started from its own folder
needs the file, and without it Steam networking cannot start and the game
falls back to TCP.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
CydandClaude Opus 5
49d6d93414