A 90-minute session is the most under-served slot in gaming. It's too long for a phone game and too short for the average AAA cutscene marathon. The sweet spot is structured: roguelikes that finish a run, narrative chapters with clear breakpoints, or skill games where you can climb a meaningful ladder and clock out.
These picks all have what the matcher calls medium time tags — designed around discrete sessions instead of open-ended grinds. Some are tight skill loops you can drop into for one round and feel done. Others are story games where every chapter ends on its own beat. None of them punish you for closing the game when the time runs out.
If you have less than an hour, see the short indie games list. If you have a full evening to disappear into something, check the cozy / deep recommendations. This list is for the in-between — the most common amount of time you actually have to play.