Gravity Turn
You are the last cargo pilot of Kaldera. Fly into mines taken over by their own guard systems, hook the cargo on a tether and haul it out through the roof, against gravity, fuel and everything that shoots back.
- Genre
- Cave flyer with physics
- Players
- 1–2 on one screen
- Platforms
- Browser now, PC planned
- Controls
- Gamepad or keyboard
- Languages
- English, Norwegian
- Status
- In development
The story
A mining colony went quiet. Its guard systems did not.
Kaldera mined gravium, a mineral that bends gravity. When the colony was abandoned, the turrets, drones and fortresses that protected the mines stayed switched on, and they no longer care who you are.
You fly the last cargo ship, guided by Vera, the station's dispatcher, on her calm voice over the radio. Every run takes you deeper, from the old mines to a black hole at the edge of the system, where gravity and time stop playing by the rules.
How it plays
Real momentum
Analog thrust on the trigger, the stick turns the ship. Gravity always pulls, and every landing has to be soft.
Cargo on a rope
Hook the crate and it swings below you, pulling the ship off course. Hauling it out is the real challenge.
Runs and medals
Pick a route on the star map. Bronze, silver or gold in each cave decides which upgrades you can take.
Never lose progress
Medal points buy permanent upgrades in the workshop. A lost run still takes you forward.
Five worlds
Ways to play
Campaign
Five worlds, each with five sectors and a boss. Beat one to open the next.
- Three difficulty levels. Easy, Normal and Hard.
- Loops. Finish the story and go again with tougher rules.
- Up to four pilot profiles on one machine, so everyone in the house keeps their own progress.
Challenges
Short modes, ten tracks each, with medals for your best result.
- Cave Race. Gates against the clock.
- Precision Landing. Smaller and smaller pads.
- Rescue. Fly people home, three seats at a time.
- Reactor. Shoot it and get out before it blows.
Two players
Share a screen or split it. Play the campaign together, or against each other.
- Co-op campaign. Shared ships, either pilot can carry the cargo.
- 1 vs 1, Space Football, Race Duel. Ten arenas and tracks.
- Hone your skills. Take on the computer in every duel.
Beyond the flight
Replays
Every cave is recorded. Watch your run again, pause, rewind and change the speed.
Share with a link
Send a replay as a short link or QR code. Your friend watches it, then tries the same track.
Video clips
Turn a replay into a 10 to 30 second clip, wide for YouTube or tall for your phone.
Top lists
Online top lists for every mode and every challenge track. See where you rank.
Race your ghost
In Cave Race your best run flies beside you, with split times at every gate.
67 achievements
From your first gold medal to the end of the story, with a few surprises along the way.
Random tracks
Full game: fresh caves made on the spot. Share the six-digit seed and a friend gets the same one.
Your controls
Rebind every key and button, adjust music and sound, and play in fullscreen.
Free demo
Play the first half of Kaldera in your browser, no download.
- Sectors 1 to 3 of world 1, nine steps on the star map
- One track in each challenge
- One arena in each two-player mode
Controls
| Action | Gamepad | Keyboard |
|---|---|---|
| Thrust | RT (analog) | W |
| Turn | Left stick | A D |
| Fire | A | Space |
| Rocket | B | Left Shift |
| Shield | LT | S |
| Pause and menu | Start | Esc |
Player 2 uses the arrow keys or a second gamepad. A gamepad gives the best feel, but the whole game works on a keyboard.
Questions
Is it free?
The demo is free to play in your browser. The full game is planned for PC on Steam.
Do I need a gamepad?
No. Everything works on a keyboard, but analog thrust on a trigger makes flying smoother.
Is it hard?
It can be. Choose Easy for more ships and slower enemies, or Hard if you want a fight. The first caves teach you one thing at a time.
Where is my progress saved?
In your browser, on the computer you play on. Clearing your browser's site data for the game deletes it.
Can two people play on one computer?
Yes. Pick two players in the menu and choose a shared screen or split screen.
Are there achievements?
Yes, 67 of them. You can earn 36 in the demo, and the rest come with the full game.