Garry's mod is a great game on the Pc, though would you like it if you could take It with you? Well, I have some idea's for that. memory-saving idea's: ~For addon's you can make the "NPC's" 2d instead of 3d (Like doom, and it would save a LOT of memory!) ~For the map's, add low-resolution textures(like doom "again"...)! ~Use something like FPSMAKER to make map's. ~And add an "addon's" folder to the program to drag and drop addon's. Need help? : I don't know how to program good enough to help make the program, but I CAN make simple textures for HUD or built-in map's. I will see you later!