Wandering Hamster, the “flagship” title of the Ohrrpgce (Official Hamster Republic RPG Creation Engine) was created by the author of that engine, James `SPAM Man’ Paige. It has one of the longest development times of any indie game: it was first released in 1997, and has been continuously updated every year until today (and it’s still unfinished and still being updated). Whenever the Ohrrpgce engine got a new feature, so did this game; recently when portraits and sound effects were added to the engine, this game got them too! (Yes, most Ohrrpgce games were created with the versions of the engine which don’t even support sound effects. Thousands upon thousands of games were created in the engine anyway.)
The game is a humorous, surrealist RPG, much like the Mother series (although probably not as good, but it does have a charm of its own). You play a Hamster and meet a variety of strange characters as you solve problems which I believe are created by an evil potted cactus (although I don’t know for sure, because the game isn’t finished yet). My view of this game might be affected by nostalgia (I learned how to create games largely by editing this game in the Ohrrpgce engine), so judge its quality for yourself. I do think it has some genuinely hilarious writing though.
Note: because the game engine uses 320×200 resolution, it might not work on monitors which don’t support that (it doesn’t work on mine). I believe there’s a way to get the game to auto-run in windowed mode, if I figure it out I’ll edit this post.