Known Issues Tracker: Monster Lab Simulator 2026
This tracker covers Monster Lab Simulator 2026 by Round 3 Studios (Steam Early Access). Not the 2008 Monster Lab RPG. See 2008 vs 2026.
How to read this page: Rows marked Community-reported come from public Steam discussions and review text (titles + paraphrases). They are not official bug-tracker IDs. Rows marked Fixed in Steam notes come from numbered patch posts already logged on Patch Notes. Always record your in-game version string before acting.
Research snapshot: 2026-08-18. Latest numbered public Steam note still v0.2.3.3 (2026-04-13).
Start here (most searches)
| If you searched… | Open this row / page |
|---|---|
| Game crashes in Visuals / graphics settings | Visuals tab crash |
| Only 800×600 or no 1440p | Resolution list too small |
| Controller / DualSense / Xbox pad | Controller support |
| Cannot remap keys | No keybind remapping |
| Egg will not hatch | Hatching Errors + Not hatching |
| “Is the game dead?” / no updates | Patch Notes — silence since April |
| Cheats / trainers | Cheats page — we do not supply them |
Active / recurring issues (community-reported, 2026)
| Issue | Status | First seen in public threads | Workaround | Evidence type |
|---|---|---|---|---|
| Visuals tab crash | Community-reported, Jul–Aug 2026 | Steam: full game crashes / black screen when opening Visuals | Avoid the Visuals tab; backup save first; report with a crash dump | Steam discussions + reviews |
| Resolution list too small | Community-reported | 800x600 only, or cap at 1080p on a 1440p monitor | Confirm GPU drivers; do not spam Visuals (crash risk) | Steam discussions |
| No keybind remapping | Community-reported | Settings have no remap list | Steam Input | Steam discussions + reviews |
| Controller support unclear | Community-reported | “controller support” thread Aug 4, 2026 | Controller support page | Steam discussions |
| Eggs not hatching | Community-reported | “not hatching” (Jun 2026) | Hatching Errors | Steam discussions |
| Child / second profile overwrote a save | Community-reported | “Child saved over my file” (Jul 2026) | Steam Cloud + a manual copy of the save folder before sharing the PC | Steam discussions |
| Empower / mission tracking stuck | Mixed — some v0.2.3.x notes say fixed; threads still appear Jul 2026 | “Empower your fulus! mission” | Update client; re-test; Empower and Weekly Protocol | Steam discussions + older notes |
| Daily Quests UI off-screen | Community-reported | Steam general discussion title | Lower UI scale only if you can do it without opening Visuals | Steam discussions |
| No numbered Steam news since April 2026 | Observable store/news gap | “the game died?” (Jul 30, 2026); recent reviews Mixed (10 of 30 days at Aug 18 check) | Treat economy/recipe numbers as stale until the next numbered note. Patch Notes | Steam news + store strip |
Replace any row if you have a versioned screenshot that contradicts it.
Visuals tab crash
Community-reported. Opening Visuals / graphics settings can crash the client or black-screen “Start new / Continue”. Workaround: do not open that tab until you have a backup save. Report on official Discord or Steam with a crash dump.
Resolution list too small
Community-reported. Some installs only offer 800x600, or stop at 1080p on a 1440p monitor. Confirm GPU drivers. Do not repeatedly open Visuals to hunt for a resolution — that tab is the crash path above. Steam launch options for this title are unverified; log whatever you try with the version string.
No keybind remapping
Community-reported. In-game Settings do not expose a remap list. Use Steam Input. OS filter keys are a last resort, not a substitute.
Eggs not hatching
Community-reported. Confirm incubator power and tutorial state, then follow Hatching Errors.
Officially listed as fixed (do not treat as current unless it reproduces)
| Issue | Steam note | Date |
|---|---|---|
| Hatch a Rare Fulu from a Common Egg mission | v0.2.3.3 | 2026-04-13 |
| Weekly Protocol Create Fulus progress not saving | v0.2.3.3 | 2026-04-13 |
| Tutorial softlocks (room / stuck tutorial) | v0.2.3.3 | 2026-04-13 |
| Couch-nap softlock; hatch prompt keybind display | v0.2.3.2 | 2026-04-01 |
| Steam Cloud save sync | v0.2.2 | 2026-03-18 |
| Extraction Machine RNG → fixed amounts | Hotfix | 2026-03-03 |
If a “fixed” issue still happens on a newer build string, file it as a regression with the new version.
How to submit an issue (so this page stays useful)
Include:
- Exact version string (Settings / main menu)
- Date
- Steps to reproduce
- Expected vs actual
- Screenshot or short clip
- Whether it happens on a new save
Do not paste trainer logs. See Cheats policy.