100,000 years is a very short, choice-based, web-playable piece. It is completable in a few minutes. Review follows the jump; no spoilers, particularly.
100,000 years allows two types of action: you can move forward in time, or you can move backward in time, each time jumping 100,000 years. Each of the nodes consists of just a very short description, a little reminiscent of what might be noted down on an era card in Microscope. As you move through the time spans, you learn something interesting about the civilization described, and then you’re pretty much done. I am not sure it would be possible to spend more than a couple of minutes exploring the piece.
Technically, this is a fine execution of concept. Aesthetically, it reminded me a little of works like Ex Nihilo or The Endling Archive, both rather abstract and poetic pieces about large-scale events and feelings. 100,000 years is less ambitious than either of those, however, both in the scope of what it has to tell and in the emotional range it explores.