Under Lock is a Action, Early Access, Horror game from NioTum with a 72% positive Steam review signal. Indie Lantern indexes it for players browsing by dark, tense, co-op, online co-op.

Game snapshot
- Developer
- NioTum
- Release year
- 2021
- Playtime
- Varies by player
- Price
- $9.99
- Review signal
- 72% positive
Screenshots






System requirements
PC
- Minimum
- Requires a 64-bit processor and operating system
OS *: Windows 7/8/10 (64-bit OS required)
Processor: Intel Core i5-2300 2.8 GHz/AMD Phenom II X4 945 3.0 GHz or equivalent
Memory: 4 GB RAM
Graphics: Graphics: NVIDIA GTX 970 / AMD Radeon R9 290
DirectX: Version 9.0
Network: Broadband Internet connection
Storage: 6 GB available space
VR Support: SteamVR or Oculus PC - Recommended
- Requires a 64-bit processor and operating system
OS *: Windows 7/8/10 (64-bit OS required)
Processor: Intel Core i7 4790 3.6 GHz/AMD FX-9590 4.7 GHz or equivalent
Memory: 8 GB RAM
Graphics: Graphics: NVIDIA GTX 1080 / AMD Radeon RX Vega 64
DirectX: Version 11
Network: Broadband Internet connection
Storage: 6 GB available space
From Steam reviews
Review notes
Under Lock is worth a closer look if you want strong atmosphere, great with friends, and solo-friendly.
Best for players who want strong atmosphere, great with friends, and solo-friendly.
Check more carefully if you dislike technical roughness.
strong-atmosphere
ToneThe mood, place, and presentation carry a lot of the experience.
buggy
FrictionTechnical roughness or instability comes up often enough to check.
great-with-friends
FitIt tends to be better when shared with friends.
solo-friendly
FitIt still makes sense as a solo play choice.
Steam review snapshots
The visuals are good, the music is terrifying, and the atmosphere is intense.The good news is that this game does have a single player mode and it's creepy as hell to play it.The controls are clunky (inventory system is bad & opening a door is much harder than it should be), the game is…Fantastic concept and fresh start for this 1v4 coop escape style horror games, at this price so much fun can be had.Why it fits
Check it if you want action, early access filtered by dark, tense, co-op.
Who might skip it
Research further on Steam if you need verified accessibility details, exact playtime, or current system requirements.