Found it! https://steamhost.cn/app/578850/640/

Początkowo opublikowane przez Ryuu:

Great place to search for games is tipofmyjoystick subreddit, if i spelled that correctly.

Thank you! Will try.

Początkowo opublikowane przez 真 MUTANT OVERLORD:

First: no, can't help
Second: whats this have to do with Sentinels of the Store, again?

Nothing I guess, sorry for that, but there was no offtopic section on your forum. I just want to find that game, and as you are people that hang out on Steam Store front page, I thought that you might be most helpful.

I saw a game I liked a month ago, forgot to put in in the wishlist. It's a game with simple graphics, like pixel art, but it looks flat because everything is made out of recitangles. There's also numbers I think but I'm not sure.

Basically, green background with a recitangle in the middle, with 4 recitangles on sides. Something like this: http://prntscr.com/gp76jb

It was featured on Store page for long time, but I can't remember the name. Can you help?