hotfix · June 13, 2025

Stellaris Hotfix 4.0.20 Targets Persistent Save Game Crashes

Stellaris update 4.0.20 arrives to eliminate save game loading crashes and freezes that accounted for the vast majority of recent player issues. The patch also introduces an optional faster save transfer setting for testing.

Paradox Interactive has released Stellaris 4.0.20 across all platforms. This hotfix focuses entirely on stability, addressing the save game loading crashes that made up the vast majority of reported issues over the preceding 24 hours.

Save Game Crash Fix

The update resolves a remaining issue that caused loading savegames to crash or freeze the game. Developers note this specific bug accounted for 95 percent of recent crashes.

Experimental Save Transfer Setting

The stellaris_test branch has been updated with a faster save game transfer feature. A new toggle in the settings menu allows players to turn this feature on or off, with a default setting of off. Developers plan to include this in the main patch next week if weekend testing goes well.

Why this patch matters

Hotfix 4.0.20 is a targeted stability patch aimed at clearing out save loading errors before the weekend.