
“Checkmate Defence” is a strategic auto-battle tower defence game. Summon and merge units from ★1 to ★6 to stop incoming enemy waves. Every decision you make during battle—merging, selling, placing, and upgrading—becomes a decisive move that can turn the tide of the battlefield.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
Try this game before buying.
The Strategy of Upgrades, the Thrill of Defence
Your choices—and your luck—will decide the battle.
“Checkmate Defence” is a strategic auto-battle tower defence game.
Summon and merge turrets from 1★ to 6★ to stop relentless enemy waves.
During combat, every decision—merging, selling, positioning, and upgrading—becomes a decisive move that reshapes the battlefield.
Player Movement
Move using WASD or the Arrow Keys (↑ ← ↓ →).
Turret Summoning
Press Q to summon a turret.
※ Higher-rarity turrets have increased summon chances based on the player’s Luck.
Turret Merging
Press E to merge turrets.
※ 1★–5★ Turrets: Merge two identical turrets to obtain a random turret of the next tier.
※ 6★ Turrets: Spend 200 coins and select two 5★ turrets from the recipe to summon a 6★ turret.
Turret Selling
Press R to sell a turret.
※ 6★ turrets cannot be sold.
Turret Placement
Press Z to pick up a turret, and X to place it.
Mines
Approach a mine and press the number keys (1–5) to assign a turret to it.
In-Game Upgrades
Obtain higher-rarity upgrades based on the player’s Luck during a run.
Lobby Upgrades
Earn resources by clearing Boss Waves and unlock various upgrades in the Lobby.
Collection
Turrets discovered through summoning and merging are unlocked in the Collection, where you can view their details.
On a battlefield of chaos where Solterian, Nethral, Elynsha, and Fenrok—four races—fight together,
the player stands as the King, commanding the final line of defence.
Now, prove your choices and your luck in Checkmate Defence.
Right now the cheapest offer for Checkmate Defence is PLN 22.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Checkmate Defence is PLN 22.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
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