Ring Keep: Merge Defense

Roly Poly

Contains ads

About this game

A pocket tower defense inspired by the classic "Random Defense" custom maps!

■ Fair by design
· Units and hidden recipes unlock only by playing. No power for sale
· No forced ads: only optional rewarded ads you choose to watch

Spend gold to summon random units, then merge three identical units into a stronger grade.
Monsters circle your keep without end. Stop them before they pile past the limit, and defeat the boss that arrives every 10 rounds before time runs out.

■ Summon & Merge
· Five grades: Common → Rare → Epic → Legendary → Mythic
· Merge 3 identical units into a random unit of the next grade!
· Lucky Summon and rerolls with lumber
· 20 hidden units you can only get from secret recipes (10 unlock through achievements and evolutions)

■ 5 Classes, 35 Units
· Warrior: melee stuns (but can't hit flying monsters)
· Archer: hits several enemies at once
· Mage: area blasts
· Cryomancer: slows enemies
· Assassin: armor shred and poison
· Mythic and hidden units cast signature skills like Meteor and Time Stop

■ A Different Build Every Run
· Level up by slaying monsters and pick 1 of 3 perk cards
· Attack, speed, economy, hidden synergies — no two runs alike

■ Challenges That Last
· 4 difficulties, each with Ascension levels 1–10
· Daily Challenge: everyone plays the same run, with a leaderboard
· 20 Play Games achievements
· Clear round 40 and see how far you get in Endless mode

■ Satisfying Sound
· 9 chiptune tracks whose tension rises with the battle
· Unique sounds and vibration for bosses, classes, and skills

■ Recommended for
· Fans of classic Random Defense–style custom maps
· Anyone who wants quick runs and long-term challenges

■ Features
· Plays offline
· Ads only when you want a reward. x3 speed, battle stats and field themes are free for everyone
· Auto-saves whenever you leave — continue anytime
· Cloud save with Play Games: keep your records and collection when you switch devices
· 한국어 · English · 日本語 · 繁體中文 · Português · Español

Graphics & sound effects: Kenney (CC0) · Font: Galmuri (SIL OFL 1.1)

What’s new

Ring Keep is out!
• Pixel tower defense: summon at random, merge 3 to grow stronger
• 4 difficulties × Ascension 1–10, endless leaderboards at Ascension 10
• Daily Challenge with the same run for everyone, 20 achievements, cloud save
• No power for sale. Ads only when you want a reward