Arrow keys to move (you are the black cube). If the little blue bar in the bottom left says "full" under it you can use space to use an attack (you can press 1 to cancel it), click on NPCs to talk, explore (some areas are marked with a certain level that you need to have to enter) ,I for inventory, 2 to change items, 3 to exit it, and just try to get a high level. This is just a test, so please leave suggestions in the comments.
Thanks to @silas6 for the movement engine. Oh and play some of @liquidportal 's games, he's a nice guy. reshared so people know i might work on this again