patch · October 31, 2026
Checkmage! Version 1.0.3 Patch Fixes Crashes and Mime Piece Bugs
Checkmage! version 1.0.3 fixes multiple promotions causing crashes, addresses Mime piece bugs, and resolves softlocks.
Developer Austin released version 1.0.3 for Checkmage!, addressing several bugs tied to piece promotions, the Mime piece, and stage interactions based on player feedback from discussion pages and Discord.
Crash and Softlock Fixes
Multiple promotions occurring at the same time no longer revert and cause crashes, which previously affected Thoth observatory battles. A pre-battle view softlock where two menus could open simultaneously is also fixed. Additionally, certain dialog trees no longer end with null dialog right before entering battle.
Mime Piece and Board State Fixes
The Mime piece no longer causes a revert to spontaneously swap piece colors on the board. It also no longer incorrectly copies status effects like dazed and colorless.
Stage and Object Corrections
Deposit pieces are no longer visually offset when appearing from stage hazards. In the classroom, keys no longer disappear permanently when leaving the stage without unlocking the door. In the grotto, players can no longer walk out of bounds near a chest. In the library, players can no longer interact with the giant book from the second floor. Bomb pieces are removed from appearing as cards in the well well, though players who already own the piece get to keep it.
Piece Rules and Achievement Fixes
Leaping pieces such as frogs and bunnies can no longer capture otherwise invincible pieces. The Unconventional achievement now activates correctly, including for pieces named king. Card removals from collection are now more apparent when handing over mime and staff cards.
Known Issues on the Radar
The developer is tracking several unresolved items for future updates. These include Wanderer commander checkmate checks for obligate moves, small visual bugs with floating pieces, instances of cards disappearing from decks, menu access blocks after specific events, hologram tile crashes, Daizy battle crashes, and upcoming balance adjustments for the driller and zombie pieces and the chasm spell.
Why this patch matters
Version 1.0.3 removes several high-priority blockers and stability faults, clearing the way for upcoming balance work on commanders and spells.