Hotfix patch 0.12.1.5 fixes multiple save/load and NPC behavior issues introduced in the Rate My Ship update, improves NPC spawning/behavior, and adds diagnostic NPC color cues to aid debugging.
Images © Ostranauts via Steam
▲Buffs2
- NPC scavenger shipsFixed NPC scavenger ships remaining docked too long by updating their AI timers to undock more frequently, especially on saves with many NPC ships.→Adjusted AI timers
- NPC transit systemFixed a missing cleanup step causing NPCs that used transit to exit a loaded station to immediately depart, unbalancing traffic among districts.→Fixed NPCs leaving immediately after reappearing
▼Nerfs1
- AI work tasks requiring toolsFixed AI agents with no inventory space from starting work tasks without the required tool, provided that the tool is somewhere on the map; now they will fail to start and log the reason for players examining crew.→Tasks require tool to be held or available
✚Bug fixes1
- Save system / Save corruptionFixed a bug that could cause save games to be missing people or items on some ships. The patch now waits for the save process to finish before returning to the main menu, reducing corruption when exiting during autosave/save.→Fixed
◆Other changes2
- NPCs color on nav station mapNPC ships missing a pilot are shown in a darker amber on the nav station map to help diagnose whether excess NPCs are due to missing pilots.→Darker amber when missing pilot
- Save/load related stability (Summary)Biggest fix prevents exiting to main menu before a save completes, addressing potential save corruption in recently visited stations/ships.→Wait for save to finish before main menu
subjects affected (6)
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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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