Gigachess is a hero defense puzzler on a chess board. Command your party of Knights, Rooks & Bishops against the relentless Pawn onslaught!
All Reviews:
Positive (37) - 91% of the 37 user reviews for this game are positive.
Release Date:
Dec 15, 2015

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Recent updates View all (39)

February 15

Gigachess V1.18 Update | New Help Slides, Other Tweaks

Some new additions to the in-game reference material and a handful of miscellaneous improvements move Gigachess ahead :)

  • Clearing a stage above par in Puzzle Attack mode will now display Bogey or Double Bogey in place of the Par / Birdie / Eagle message at the Victory screen
  • The categories listed in Endless mode's performance grading are now coloured green or red to better indicate what's a positive influence and what's a negative influence when calculating performance
  • Two additional slides have been added to the in-game reference guide accessible from the drop-down menu, offering brief, pictorial summaries of Shieldguards, Cursed Pawns and Pawnwarps
  • Completion of individual lessons in the playable tutorial is now saved session-to-session to make it easier to unlock the Tutorial Complete achievement
As always, your bug reports and feedback on the community forums are a huge help! Thanks for playing Gigachess, please do share whatever's on your mind <3
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December 21, 2017

Gigachess v1.17 Update | Endless Mode Mutators

Two new gameplay mutators for Endless mode are the big additions moving Gigachess ahead to v1.17 :)

  • Spawncycle & All Viper mutators added to Endless mode, joining Hardcore as ways to impose new rules onto any difficulty level, more info below!
  • A 5th page has been added to the in-game help slides accessible from the dropdown menu, offering a visual aid for how each hero piece's moveset is expanded while in Hyper state
  • A bug where Blockades and Trapmines could be accidentally placed immediately after loading a quicksave or autosave in Endless mode fixed

Alright, so the new Endless mode gameplay mutators can be turned on during the party builder phase and work like so! Left-to-right from the image above :)

Enabling the All Viper mutator makes it so 100% of Pawns spawn as Viper Pawns. Ordinarily, the frequency at which Viper Pawns appear is set by the difficulty level but switching this mutator on acts as an override. Nothing but Viper Pawns can be a little bit intense, don't let an opportunity to earn a Shieldguard point slip by because the Viper Pawn downgrade is a big deal!

Enabling the Spawncycle mutator sets up an ongoing semi-random Hits target where the Pawn spawn rate increases (and rolls over back to Novice level once maxed out) every time the target is reached. This means the pace of the game is no longer fixed and the spawn rate of new waves will continuously cycle, getting faster and faster and faster before resetting for a well-deserved breather :)

Enabling the Hardcore mutator starts the game with only 1 life and prevents hero pieces from replenishing their Hyper lifespans. Ordinarily, capturing a Pawn while a hero piece is Hyper restores that piece's Hyper lifespan to full (indicated by a slow pulse), but switching Hardcore on means maintaining a hero piece's Hyper state requires constant turn-on-turn chaining of attacks since there's no way to get back to full lifespan.

Anyhow, I hope you all have some fun with these new twists to Endless mode (although Hardcore's been around for a little while, just mostly hidden) and let me know what you think! Here's hoping everyone finds something they like in the Winter Sale and Happy Holidays :D

As always, your bug reports and feedback on the community forums are a huge help! Thanks for playing Gigachess, please do share whatever's on your mind <3
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“Fans of puzzle games will find themselves in puzzle gaming hog heaven.”
Nerdy Notes

“A heady rush of chess-based strategy and tactics.”
Fireside (Game Jolt)

“Gigachess is one heck of a tactics game.”
4.0/5 – Softpedia

About This Game

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 & Mutators!)
  • Puzzle Attack mode offering 48 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 & Steam Workshop support!)
  • Playable Tutorials & Tooltips for a crash course in the mechanical intricacies & insight on demand
  • Strategic Power-ups that block advancing Pawns, plant explosive traps & more!
  • Competitive Leaderboards to rank your best played games against the world
  • Achievements & Trading Cards for the complete Steam experience

A single-player chess variant has never been more compelling. Get your head around Gigachess today!

System Requirements

    • OS: Windows XP SP3
    • Processor: Intel Atom 1.6 GHz (or equivalent)
    • Memory: 2 GB RAM
    • DirectX: Version 8.0
    • Storage: 50 MB available space
    • Additional Notes: 100% mouse controllable
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