LUMEN — Lost Lights
Free · no download · computer with keyboardLUMEN — Lost Lights is an atmospheric platformer with environmental puzzles. The mechanical city of Aster went dark when its Heart of Light shattered. You play Lumi, a small maintenance robot with a light core in its chest.
Twenty levels in four worlds — the Silent Greenhouse, the Machine Halls, the Crystal Caverns and the Shadow Spire — each bring new ideas: light pulses that make hidden glass platforms appear, spring pads, conveyors and lifts, timed doors that close again, cracked glass that breaks underfoot, gates with two switches and veils of shadow that only your light can open.
Collect the light shards of each level and relight its lantern. Beat the par time for three stars and unlock the next level; the last one rekindles the Heart of Light. The game saves at every checkpoint and is played with a keyboard on a computer. It is in English; Turkish can be chosen in Settings.
- Move and jumpA/D or the arrow keys to move, Space to jump; hold Space to jump higher.
- Light pulsePress E to send a pulse: hidden platforms appear for 4 seconds, receptors wake up, shadow veils dissolve and shadows are stunned.
- MachinesPress F at consoles. Some switches are timed and their doors close again; a door with lamps opens only when every switch is on.
- Relight the lanternCollect every light shard of the level and press F at the lantern. Finish within the par time for three stars.
Phone & tablet
- Phone and tablet
- Not supported yet: play on a computer with a keyboard
Keyboard & mouse
- Move
- A / D or ← →
- Jump
- Space
- Light pulse
- E
- Use
- F
- Pause
- Esc
- Hidden platforms never vanish while you stand on them; they close when you step off.
- Land on a spring pad to bounce about twice as high as a normal jump.
- Cracked glass breaks shortly after you land on it: keep moving, it grows back after a few seconds.
- Each pulse costs 35 energy: wait for the bar to refill before walking into a shadow creature.
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Is LUMEN — Lost Lights free to play?
Yes. LUMEN — Lost Lights is free on YoHU.io. Ads keep the site free; there are no paywalls inside the game.
Can I play LUMEN — Lost Lights on my phone?
Not yet. This game needs a keyboard, so play it on a computer. Touch controls may come in a later version.
Do I need to download anything or sign up?
No. The game runs in your browser. An account is optional and only keeps your favorites and best scores on every device.
Is my progress saved?
Your best score and favorites are saved on this device automatically. Log in to keep them across devices and enter the weekly leaderboard.
How do I play in full screen?
Use the Full screen button under the game, or the corner button inside it. On iPhone the game covers the whole browser window instead, because iOS limits full screen for web pages. Add YoHU.io to your Home Screen for an app-like full screen.