Hotfix patch 0.12.1.1 for Ostranauts improves pathfinding, AI behavior, saving, and timer handling with several bug fixes and a few quality-of-life tweaks.
Images © Ostranauts via Steam
▲Buffs12
- Pathfinding
- Added a performance optimization to pathfinding that reuses existing solutions to improve performance in high-traffic areas and in large spaces.→Improved
- AI now has better knowledge about how to use environmental objects, enabling smarter interactions.→Adjusted AI to be more aware of environmental objects
- AutoSave
- Autosave interval timer now resets on manual saves to prevent overlapping autosaves and improve save reliability.→Resets when manual save occurs
- Slight RAM usage improvement after saving to reduce memory pressure during saves.→Slightly improved RAM usage after saving
- AI Behavior
- AI:AI's list of possible actions updated to include newer items for more versatile behavior.→Updated to include newer items
- AI:AI now better understands environmental objects and how to interact with them.→Improved knowledge of how to use environmental objects
- Timers
- Fixed a bug where special event timers (e.g., micrometeoroids) continued updating while the game was paused.→Fixed timers updating while paused
- Corrected issues where UIs would stop updating when the game paused due to time scaling.→Fixed UIs not updating during pause due to scaled time
- SavingManual saves reset the autosave timer to avoid immediate repeated autosaves after a user-initiated save.→Autosave timer resets on manual save
- Wounds visibility bugFixed a bug where wounds could be invisible on the paper doll after loading a game.→Visible on inventory paper doll after loading
- NPCsFixed issues causing missing or too many NPCs of certain types.→Fix for missing/extra NPC types
- OKLG kiosksOKLG licensed kiosk now defaults to Trade (not License Info) for consistency with other kiosks.→Kiosk action list fixed to Trade instead of License Info
▼Nerfs1
- PathfindingFixed a bug where AI would equip a helmet whenever the pathfinder considered passing through an airlock without air on the other side.→Helmet rule fixed during airlock pathing
✚Bug fixes1
- Destroyed object appearanceFixed a null exception that could occur when updating the appearance of a destroyed object.→Null exception fixed when updating appearance of destroyed object
subjects affected (9)
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Patch history
- →Roster Helmet Toggle and Hour Indicator, Autotask Stillness, Tracking Alarm FixJul 17, 2026 · 1mo
Hotfix 0.15.1.17 adds helmet auto-removal toggle, an hour indicator in the roster, keeps captain/crew still when Autotask is off during free time, and silences tracking alarm when controlling crew on a station.
- Fix for Random Pausing, Battery Swap BugJul 14, 2026 · 1mo
Hotfix 0.15.1.15 fixes random pause bug and battery swap reliability, plus debugging log spam cleanup.
+1→ - Overheating Reactors, Ship Instadeath, and Other FixesMay 8, 2026 · 3mo
Hotfix addressing overheating, ship explosions, weapon accuracy, AI targeting, and reactor behavior with several reliability and UI fixes.
+3→ - →Fire guardrails, and emotional clobber reliefApr 24, 2026 · 3mo
Hotfix addressing unintended fire ignition and rapid emotional clobber events, with save compatibility note.
- Everybody's Ugly, Poofing Items, and Other FixesApr 23, 2026 · 3mo
Hotfix v0.15.0.19 for Ostranauts fixes loot RNG bug, disappearing items, LA Aerostat duplication, NPC undocking issues, and various null reference fixes.
+1→ - →Hotfix (0.15.0.18) for nulls and other issues reported in Fire in the HoldApr 22, 2026 · 3mo
Hotfix 0.15.0.18 for Fire in the Hold fixes several stability, UI, and flow issues including docking safety, NAV visibility, encounter flow, null references, and tutorial resilience.
- →Hotfix for null reference in ship piloting tutorialApr 21, 2026 · 3mo
Hotfix addressing a null reference during ship piloting tutorial transit undock step.
- Fixes for Broken Ships, Selection Dragging, and WhodunnitOct 10, 2025 · 10mo
Hotfix v0.14.5.15 fixes selection dragging, ship loading and naming, whodunnit stability, and maintenance refill adjustments to reduce overfill.
+4→
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