Objective: Defuse every rune and exit via the light grey tile.
WASD: Move up, left, down, and right respectively.
Space: Use Arcane Sensor. (Yellow flash = at least one rune nearby)
M: Toggle defuser placing mode. Press WASD to place a defuser on the tile in that direction. Press M on top of a defused tile to reclaim the defuser.
F: Get the "vibe" (color) of surrounding tiles. Runes all have the same, randomly assigned color. All other tiles have a random color that isn't the Rune color.
You are the titular Runesapper, a master of your craft, who finds themselves in a strange tower filled with explosive runes. All you have to aid your escape are a delicate arcane sensor, a stockpile of defusers, and your intuition.