Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics

thanks so much for your feedback. i'll try to make these things more intuitive over the next few releases. in the mean time, i'll try to clarify:

the keys are a partially implemented feature- they will be a multifunction key / collectible in the next release.

there's currently a bug which can cause tiles to be solid (or nonsolid) which shouldn't be by default. i'm working on a fix, but in the mean time, should this happen, you can fix tile solidity by holding the shift key and clicking.

you're correct- signs aren't implemented yet (but will be in v. 1, later this week!)

(your game is coming along nicely, by the way)