I created a game about limited space for save games. In this game each item costs cash but also comes with a "save weight". If your save weight is too large for the slot you must use another. If it is larger than all the slots then you can't save. You can only save once as the same will become "corrupted" upon reload. Inspired by an old game I used to play called "Defend the house". This is a really basic version but I kinda like the idea of save weights so may develop this further at some point...