As is known to all, these retro + pixel styles of small indie games are vogue for the moment. Crea's design and gameplay are similar with Terraria, Starbound or Planet Centauri, all of which have high playability. Yet Crea has its own difference and lightspot ('Key Features' lists part of them).

Mari0 is a free, open source complete recreation of Super Mario developed by Stabyourself. It combined the classic elements  of Super Mario Bros. (1985) with Portal (2007), making the classic video game filled with a modern taste and more outstanding gameplay.

Do you remember the 2D Edition of Counter-Strike with top-view I posted not long ago? Soldat (means Soldier or Brave in German) is another Counter-Strike style multiplayer action shooting (shoot’em up) game with 2D scrolling side-view, learned characteristics mainly from Liero, Worms, Quake and Counter-Strike.