patch · March 5, 2026

Frosthaven Patch 0.12.3 Resolves Softlocks, Desyncs, and Quest Bugs

Frosthaven patch 0.12.3 tackles a massive list of technical issues, fixing card-induced softlocks, multiplayer desyncs, and quest-specific progression errors.

A sweeping update for digital Frosthaven fixes scores of issues across gameplay, cards, and scenarios. Patch 0.12.3 eliminates troublesome softlocks tied to specific card actions, stops multiplayer desyncs, and corrects enemy behaviors and quest parameters.

Card and Action Fixes

The update fixes multiple card-related softlocks and errors, including the Meteor card 'Swelter', the Snowflake card 'The Spirits Call', and Boots of Transference interactions. Undo feature desyncs are resolved, and the Snowflake card 'Polar Vortex' top action can no longer be used infinitely via undo. Additionally, Data Drive no longer triggers a critical error.

Quest and Combat Corrections

Quest fixes ensure enemies in Quest 55 do not drop to negative health, the Harbinger of Shadows in Quest 56 is no longer damaged by hazardous terrain while immune, and Quest 92 adds a crate counter alongside proper debriefing loot displays. Shambling Skeletons no longer inflate stats after enhancement or crash the game upon death.

Enhancements and Items

Enhancement costs are corrected for Bannerspear cards, multitarget enhancements now double costs as intended, and summon enhancements count as persistent bonuses. Items like the Decanter of Mists, Wing Clippers, and various boots now interact with traps, attacks, and movement precisely as intended.

Why this patch matters

Patch 0.12.3 is a massive maintenance update that cleans up dozens of edge-case crashes and rules misinterpretations, stabilizing both solo and multiplayer campaigns.