Not In My Dungeon

A turn-based reverse tower defense in retro 16-bit pixel style. You are the dungeon, and parties of five or more heroes (fighters, knights, mages, clerics, rogues and rangers) keep raiding you for loot. They walk 40 branching steps toward your throne, picking one of three paths at random at every junction and grabbing gold, epic items and stat boosts along the way. Spend energy to station goblins, slimes, skeletons, orcs, dark mages, trolls and dragons, plus spike pits, poison gas, arrow walls, fire runes and boulders, on the paths you think they'll take. Cast Foresight to glimpse their route, or Cave-in to seal paths and funnel them into your guarded tunnel. Every five branches is a safe zone where heroes may camp and build a forward base; when two parties meet there it becomes a fortress that sends out new raiders, so soften bases with Fireball and Poison, then storm them with a 3-monster squad that fights each guarding party in turn. Your reach covers the whole dungeon from day one. Slaying heroes earns XP for stronger monsters, but your notoriety grows and tougher heroes come. Survive 45 days, and don't let anyone kill your Dungeon Master.