8-year-old indie game on Steam goes from "like 10 reviews" to over 500 as players use it to play an Undertale multiplayer mod, and the dev behind it just thinks it's "really cool"

Crashphalt.

Downloads are downloads, even if it's technically to enjoy another game. The indie platformer Crashphalt was yanked out of obscurity in recent months, not because people discovered it's actually a hidden gem, but in order to avoid restrictions on a clever Undertale mod.

The developer behind Crashphalt, RetroSpecter, explained what's going on in a Reddit post. Almost eight years ago, he put the multiplayer fighter on Valve's store for the low cost of nothing. It was his first project and he just wanted people to enjoy it. Playership fluctuated in single and double-figures and the game got a few positive reviews - cool, and on he went to make more games.