Build a maze out of chess pieces and defend your king in this Tower Defense take on the timeless classic, Chess! Pawns, rooks, bishops, knights and queens strike by their own moves as the white army marches across a 3D board, through a full hand balanced campaign.
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Match strength key:80+65+50+<50Black King's Defense
SteamAbout Black King's Defense

Black King's Defense is a chess-piece maze defense game. The white army enters at one end of an 8 by 8 board and advances toward your king. Every black piece you place is both a wall that bends their route and a defender that strikes by its own chess move.
Verifiably solvable, nearly infinite ways to play
There are more possible games of chess than there are atoms in the universe, yet finding even one winning army in Black King's Defense is a real challenge! Put your chess and tactic skills to the test with this genuinely challenging chess puzzle, with each enemy wave of the campaign being pre determined, so you can adapt your strategy and defense, progressing further each run.
Upgradable pieces, with special moves
Strength, speed and range upgrades build your army's power. And each piece has it's own special upgrade to change the flow of your defense! Hover an upgrade to preview exactly which new squares it will reach.
A full campaign
A board that plays the piano
The original piano theme, The Ivory Rain, is timed on the same clock as the battle. Slow the game down or speed it up and the music changes with it. (You can also shut off the music in the settings to vibe to your own beats and relax)
Checkmate
Loss is only the beginning. Rethink your strategy. Learn the White King's patterns. Dive back in and defend your kingdom!
Solo Dev Project
Hey there! Thanks for reading all the way down here. I am Canonheim, a solo dev making indie games in my spare time. This game was inspired by my Dad, who would stay up until 4am playing old flash tower defense games like this, and who was also incredibly addicted to chess. I hope you enjoy!
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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