ONE TOWER: Idle Tower Defense

Contains adsIn-app purchases
Content rating
Everyone
100+
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Content rating
Everyone
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About this game

One tower. Endless waves. How far can you climb?

ONE TOWER is an incremental idle tower defense game about a single tower holding the line against neon swarms that never stop. Every kill pays coins on the spot. Spend them on Workshop upgrades that carry over from run to run, come back stronger, and push one wave further than last time.

🧠 EVERY 50 WAVES, A NEW THREAT
Swarms, armored plating, brutal giants, fast raiders. Each sector tells you what is coming, and the upgrades that answer it wear a star. Read the threat, build the answer and you will climb.

⚔ BUILD YOUR TOWER YOUR WAY
• 48 upgrades across Attack, Defense and Utility: crits, multishot, ricochet, spikes, mines, a rampart, cheat death and more.
• Every button shows exactly what a purchase changes: now → after.
• Buy levels with cash during every run, and lasting levels in the Workshop with coins.
• New Workshop tech opens as you climb.

♾ ASCEND FOR ECHOES
From Tier 4 you can Ascend: your Workshop, Amps and coins reset (30% of their value comes back as coins) and your climb restarts a few tiers down. Every tier you cleared on that climb becomes Echoes: permanent damage, health and coins. Ultimates, cards, labs, research, implants, drones, relics, skins, gems, stones and everything bought with money or gems are kept. Always optional.

🛸 DRONES AND 10 ULTIMATE WEAPONS
• Drones circle the tower, dive on the thickest crowd and work it with their own field: burn, stun, gild, boost.
• Arc Storm, Singularity, Midas Crown and more: unlock them with Power Stones and raise three stats on each. The first one unlocks at wave 10.

⏩ YOU SET THE PACE
Every new tier starts at ×1 and opens ×2, ×3, ×4 as you climb it. Everyone goes up to ×4, a Boost or Ad-Free to ×6, VIP to ×10.

👑 BOSSES EVERY 10 WAVES
Juggernauts, Warlords, Beholders and Hive Mothers, with elites behind them, under a sky and a soundtrack that build as you climb.

🃏 CARDS, LABS AND MORE
• 32 cards in 3 rarities, 7 stars each.
• Research labs that keep working while you are away.
• Boons, Implants and the Warden for the long climb.

🏆 A REASON TO COME BACK
• More than 100 secret trophies, each hidden until you earn it.
• Tournaments twice a week: from wave 50 you are entered automatically under your player name (or a generated one), and your next run is your attempt (Settings can switch this off). 30-seat brackets, real players first, computer rivals in empty seats, leagues Copper to Legend.
• A world leaderboard ranked by tier and wave.
• Daily missions and two-week events with permanent Relics.
• The Vault: while you are away your tower fills a Vault with coins for up to 3 h. Open it with one rewarded video, or have it collected automatically with any permanent purchase or an active Tower Pass (Ad-Free 4 h, Tower Pass 8 h, VIP 12 h).

OPTIONAL PURCHASES
ONE TOWER is free to play: every tier, card, ultimate, lab and upgrade can be reached without paying. Optional purchases: gem and Power Stone packs, bundles, coin licenses, Ad-Free, VIP, Echo Amplifier, Premium Milestones, tier packs, Event Boost, a Starter Pack, the Founder's Vault (until 31 January 2027) and the Tower Pass subscription (renews monthly at the price shown until you cancel in Google Play → Subscriptions). Only sold, never earned: no ads, the ×8 and ×10 speeds, coin licenses, extra Echoes, the automatic Vault, the 21st card slot and some skins. You always see the exact price before you confirm.

RANDOM ITEMS — ODDS PUBLISHED
Card chests: Common 80%, Rare 17%, Epic 3%; an Epic card is guaranteed within 40 chests. Implant pulls: Common 68.5%, Rare 29%, Epic 2.5%; an Epic implant is guaranteed within 60 pulls. The game shows both next to every chest and pull. In Belgium, chests and implant pulls are not sold for gems.

ADS
Rewarded videos only, and only when you tap: the reward is shown first. Ad-Free and VIP owners never see an ad.

No account needed. Your progress lives on your device.
Idle tower defense: upgrade one tower, crush endless swarms, ascend stronger.
Updated on
Oct 25, 2026
Events & offers

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity and 2 others
  • This app may collect these data types
    Location, Personal info and 4 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

2.0.3 - You asked
- Sound and music are now separate: the speaker button mutes only the game sounds, music has its own switch in Settings.
- New Settings switch: turn off the Boss Down popup (a short message shows instead).
- Halloween event still live until 2 Nov: pumpkins, bats, ghosts and the Pumpkin Tower skin.