This game is amazing. It one of if not my favorite game on steam. The game-play is lots of fun you get to unlock different characters, items and artifacts. The game has excellent music and a different style of pixel graphics. Although controls can be a bit hard to use, I would recommend using a controller or similar. I will admit I did buy the game on sale for $2.99.

Pro's
-Music
-Ghrapics
-Statistics(more than most games)
-Lots of different characters
-Local Co-Op(online doesn't work)

Con's
-Lag(usually only when you have a lot of enemies and your attack triggers several effects.)
-Unusually addicting
-Loss of sleep

$ Value: $10.51
Replay value: 9/10
Overall: 11/10 ~ worth every cent.

Amazing game, great atmosphere and graphics. Steady progression that allows you to go at your own pace. Update five brought a lot of cosmetic stuff so now you can just ignore progression and just build structures if you really wanted to. Easy 10/10 game, but be warned you may find your self making schematic and doing math.