Settled on an Idea
Gonna make a small RPG I thinks. Got a simple map and some planning done so far. The map will get destroyed as you progress, but there will be ways to 'reset' to acquire more things before you fight the boss. Resetting will require you to sacrifice a character to the god of time (Greek of Latin? Chronus/Kronos or Tempus Dominus?) thus diminishing your party and inventory space. That's 3 axes of 'space' that can run out.
Player will start in the centre; outermost tiles die first but will contain the best items - will the player risk it and go for them first or wait until a reset or two? Kinda got a Majora's Mask feel to it.
Decided to risk it and go for an isometric perspective.
