Penumbra remembers me to Lost

[Kedjane]

Yeah, I'm pretty sure Penumbra did draw inspiration from Lost as I think the first season started on swedish television about the time they were developing the games.
The "Shelter" really reminds of the hatch in every way possible, but apart from that and the supernatural theme I wouldn't say they are really similar. The Archaic and Dharma are pretty similar too.