I just finished up Loot Hero DX (thanks again whoever gave that away!)
Although I did have fun with it (at least for a little while anyway,) I probably wouldn't have if I had to pay the full price for it. Call me cheap, but you could buy so many better games with $3. The game consists of 9 levels that take about 30 seconds to complete, and all you have to do to win is hold down your left mouse button. You automatically deal damage to enemies once you run into them, so you don't have to put too much thought into what you're doing beyond buying upgrades to your stats (attack, defense, crit rate, and speed) or grinding.
And you'll do a lot of grinding, if you continue playing after beating the game the first time around. That's because after each completion of the 9th level, the enemies' stats, experience points, and money increase. So if you're not strong enough to defeat enemies before they defeat you, you have to grind on a previous level for either level ups or money to increase your stats.
There's not much of a point to play this game if you're not going for achievements, which are easy or doable for the most part, but the level 100 achievement is such a god damn slog. I just watched movies while I was grinding up for it.