How It Works Biomes Reviews Get the App
NEW — Now in TestFlight

Dodge. Slash.
Outlast the void.

Betablight is a one-thumb neon-samurai arcade runner. A lone blade cuts through the dark while drones close in, biomes shift, and the katana runs hot.

Free • One-hand portrait • No ads • Global leaderboard

Betablight gameplay
Betablight menu
Betablight
Run Telemetry
NEO-KYOTO
RAIN DISTRICT
NEON FOREST
CRIMSON VOID
HEATKatana runs hot
3 HPOne wrong lane
COMBOStreak multiplier
75sPer biome
NEO-KYOTO
RAIN DISTRICT
NEON FOREST
CRIMSON VOID
HEATKatana runs hot
3 HPOne wrong lane
COMBOStreak multiplier
75sPer biome
3
Lanes
4
Biomes
3
HP
1
Blade

Three inputs, infinite void

Portrait. One thumb. Zero menus to grind through. You're cutting drones within a second of opening the app.

1

Slide

Tap the LEFT or RIGHT side of the screen to slide one lane. Three lanes, one thumb, no swipe gestures to mis-read.

2

Slash

Tap the glowing button to slash drones in your lane. Chain kills for a combo multiplier. The blade runs hot — spam it and it locks.

3

Survive

Three hits and you're gone. The void speeds up, biomes shift every 75 seconds, and every early reaction earns late life.

A world that refuses to hold still

Every 75 seconds the void shifts. New colors, new skyline, same blade. Each biome is the same game with a different mood pressing down on you.

Neo-Kyoto

Where the run begins. Magenta sunset over the old city, drones sliding between neon temples. The blade is still clean — don't get used to it.

Rain District

Cyan downpour and chrome reflections. Visibility drops, timing sharpens.

Neon Forest

Acid-green canopy lit from within. Ambient glow makes drones easier to spot — and the world faster.

Crimson Void

The blood-red endgame. Speed peaks, the sky turns the color of warning, and the run bares its teeth.

HOT

Katana Heat

Sit in one lane too long or mash the button — the blade overheats and locks until you move.

x5

Combo Streak

Chained kills pile a multiplier onto score and coins. Break the rhythm, lose the stack.

Leaderboard

Sign in with Apple or Google and push your personal best onto the global board. Offline runs still count when you reconnect.

Players keep hitting retry

Short sessions, clean inputs, one more run.

"I opened it to kill three minutes at a stoplight. Twenty runs later I'd blown through the whole commute. The Crimson Void is a personal attack."

K
Kenji R.
TestFlight player

"The heat meter is what makes this thing work. You can't just mash the slash, you have to think with your thumb. It feels like a rhythm game got into a knife fight."

S
Sora M.
TestFlight player

"Looks like a synthwave album cover, plays like an old arcade cabinet. Zero ads, nothing gating the fun. I've already booked my spot on the leaderboard."

A
Ayane T.
TestFlight player

Sheath it later.
The void is open now.

Free forever. No ads. No pay-to-win. Just three lanes, one blade, and a drone swarm that won't quit.

Available on iOS via TestFlight • App Store launch coming soon

Get Betablight — It's Free