No modern game (post-2010) will run on 256 MB system RAM. Minimum today is 4–8 GB. You are limited to **~2005 and earlier** titles, and even then, the OS (Windows XP/98) consumes ~64–128 MB, leaving <128 MB for the game.
Your 256 MB machine can emulate **consoles up to PS1/N64/Dreamcast** well via RetroArch / DuckStation / Project64 / Flycast. The emulator + ROM fits in RAM.
Install a lightweight distro (AntiX, Tiny Core, Puppy Linux, Lubuntu, Xubuntu). Idle RAM ~80–150 MB. Leaves more for the game. Use Lutris / Steam (Linux native old titles) / Wine.
If this is a daily driver, **upgrade RAM**. DDR2/DDR3 2GB/4GB sticks are <$10 used. 256 MB is insufficient for a usable 2024 computing experience (browser alone >500 MB).