Your light is your sight, your life and your weapon.
Move: WASD / arrows, hold mouse/trigger/finger toward where you want to go, or gamepad stick.
Your light ring is your health and weapon range: shadows only take damage inside it. Hits dim it.
Embers give XP and brighten your light. They glow in the dark, so go get them... carefully.
Flare (Space, right-click, double-tap, gamepad A, or the FLARE button) spends light for a huge blast.
Level up by flying into one of the glowing upgrade orbs (or press 1/2/3). Time slows while you choose.
Snuffed out? You rekindle on the spot but lose your last upgrade and some score multiplier.
Mini-boss every 3 minutes, the Eclipse at 12:00, Dawn at 15:00, then the endless Second Night. Spend ember shards at in-world Shard Shrines or in the Hangar.