(Games written specifically for 64-bit systems have a much, much larger memory limit.) It is possible for the player to make some relatively simple changes to their Windows configuration to enable their 32-bit game to access up to 4GB of Random Access Memory (RAM), assuming at least that much is installed. Most games that are written for Windows are '32-bit' by default, and as such are limited by Windows to having access to only 2 Gigabytes (2GB) of system memory (not video memory, which is separate). 5.5 Page File Size and The Commit Limit.