Some may recall a Far Cry mod named 'Tuesday & Ark,' which appeared on Moddb back in 2007, and was originally released in 2005. It was a well-liked mod, but many felt it was let down by critical bugs and glitches. Lots of glitches. So, in late 2008, Robert-33 began work on a new version of the mod, with the aim of making the mod gleam as it should have on its initial release. The product of that work is 'Tuesday & Ark - Continuum'.
Interesting and artistic mod. Arguably an experience, not a game much like Dear Esther, though of course, Tuesday and Ark well precedes it.
It's overly vague in it's artistic pursuit, and it would be cool to see someone really make a true, complete title with an understandable resolution. At the same time, there is charm in it's faults, and that charm might be lost if someone was to change our perceptive of it, but then again, we wouldn't have to play it if we don't want the risk :P