A downloadable game for Windows and macOS

Buy Now$3.99 USD or more

Gigachess is a puzzle board hero defense. With your custom party of Knights, Rooks and Bishops, defend against the relentless waves of enemy Pawns running a blitz for the board's bottom. The seemingly unbreakable formations and constant downward march of your foe transform chess from slow burn to tactical rush in this deeply addictive single-player remix of turn-based strategy's ultimate grandmaster.

How long can you survive the pawn onslaught?

  • Endless mode with randomly-generated waves and a choice of 4 difficulty levels for a perpetual Pawn menace (now with autosaves & Hyper states!)
  • Puzzle Attack mode offering 40+ high-stakes, logic-testing stages to clear (now with Easy Mode!)
  • Knight's Dungeon mode providing a 40-stage set of knight's tour-inspired puzzles to maze through (now with a Level Editor!)
  • Playable Tutorials & Tooltips for a crash course in the mechanical intricacies and insight on demand
  • Strategic Power-ups that block advancing Pawns, plant explosive traps & more!
"Gigachess is one heck of a tactics game."
4.0/5 - Softpedia

Purchase Gigachess v1.15 on itch.io today to get ongoing access to the latest build DRM-free plus a key for the Steam version that comes packed with trading cards, achievements and leaderboard support! (Steam version is WINDOWS ONLY)

Please reach out to us ( contact AT gigatross DOT com ) with any questions, comments and feedback. Thanks a bunch for playing!

Clicky to download the presskit
OS: Windows XP SP3
CPU: Intel Atom 1.6 GHz (or equivalent)
Memory: 2 GB
GPU: DirectX® 8.0 compatible
HDD: 50 MB free

OS: OS X 10.6
CPU: Intel Atom 1.6 GHz (or equivalent)
Memory: 2 GB
HDD: 240 MB free

* best played with your favourite mouse <3 *


Buy Now$3.99 USD or more

In order to download this game you must purchase it at or above the minimum price of $3.99 USD. Your purchase comes with a Steam key. You will get access to the following files:

gigachess_v1.15_full_win.zip 42 MB
gigachess_v1.15_full_mac.zip 90 MB

Download demo

gigachess_v0.66.zip (FREE ALPHA) 48 MB
gigachess_v1.15_freedemo_win.zip 42 MB
gigachess_v1.15_freedemo_mac.zip 90 MB

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