01 / Lane defense
Campaign
Build a planet lineup, choose Power Surges, and time your abilities against fleets and bosses across ten worlds.
Your journey starts in Astra BeltGalactic tower defense
Build your fleet.
Defend the Spire.
Turn planets into weapons. Hold the line against enemy fleets. Make the next upgrade the one that changes everything.
Free to play · Optional rewarded ads & in-app purchases
Find your way to command View full gameplay
- 10
- Campaign worlds
- 250
- Badges
- 28
- Planet weapons
- 8
- Moon types
Choose your battlefield
One galaxy.
Three ways to command.
Hold a lane. Defend an orbit. Take the next sector. Each mode brings a different tactical challenge.
02 / Radial defense
Orbital Siege
Protect your planet from every direction in a 150-level campaign with its own upgrades, drafts, and checkpoints.
Protect the core
03 / Territory strategy
Asteroid Conquest
Send ships between connected asteroids, combine your forces, and outmaneuver rival fleets. Earn stars and milestone rewards.
Make every move countNew modes and content unlock as you progress. Some content requires a purchase.
Your planets. Your playstyle.
Build something worth defending
A stronger fleet.
A different strategy.
The battle is only half the journey. Shape your collection between missions, then take your next idea into the field.
- 01
Find your combination
Mix burn, frost, chain arcs, and other weapon effects. Choose planets that work together against the next threat.
- 02
Develop your planets & spires
Collect pieces, work toward five-star ascension, and invest your resources in permanent upgrades.
- 03
Bring a moon along
Mount moons for additional firepower. Improve your individual moon copies in the Forge and tailor your support.
Beyond the next wave
Ten worlds.
One evolving challenge.
From Astra Belt to Pulsar Void and beyond, explore cosmic battlefields, face tougher fleets, and pursue your next three-star clear.
Start your campaign
Your journey, in insignia
Collectibles
Earn distinctive badges through challenges and mastery. Build your collection in the Badge Vault and display your favorites.
First Flight
Every journey has a beginning.
Parallax Witness
A wider view of the galaxy.
Breakwater Marshal
Stand firm under pressure.
Siege Vanguard
A mark of orbital resolve.
Spireheart
Mastery across battlefields.
Orrery of the Unbroken Map
A galaxy of achievements.
Sector Scout
Chart a course into the unknown.
Phase Bloom
A new perspective takes shape.
Array Warden
Keep watch over the frontier.
Unified Command
Many fronts. One commander.
Last Bastion
Hold the line to the very end.
The Braided Zenith
Distinct paths, woven together.
Inside Arcane Spire
Your next move starts here.
Real game screens, from your command deck to the upgrades that shape your fleet. Tap a screenshot to take a closer look.
Game captures from a prepared progression profile. Interface and content may vary by version and device.
Is Arcane Spire free to play?
Yes. You can download and start playing for free. The game includes optional rewarded ads and in-app purchases. Some content requires progression or a purchase.
Can I play offline?
The single-player Campaign supports offline play. Purchases, rewarded ads, and online services require an internet connection.
Where can I play?
Arcane Spire is available on Google Play and the App Store. Check the store listing for device compatibility and availability in your region.
How do I get help or share feedback?
Contact arcanespire@regulus.io. Include your game version, device, and what happened so we can help.
Arcane Spire
Galactic tower defense
Make your stand.
Choose your planets. Find your strategy. Defend the Spire.
Free to play · Optional rewarded ads & in-app purchases
Your fleet is waiting