Crimsonland Description:

In Crimsonland, the longer you manage to stay alive, the more experience you get. As you wage battles against a never-ending horde of monsters, you're rewarded with new weapons and features. Crimsonland features an arsenal of over 40 perks and more than 15 weapons, including machine guns, rocket launchers, flame-throwers, and plasma guns. The game also has three exciting modes, Quest, Rush, and Survival. In Quest mode, you advance by overcoming a number of monsters, with each new level introducing new weapons, perks, and power-ups. In Rush mode, you must fight off more crowds of monsters and survive as long as possible. Survival mode is a mixture of both the Quest and Rush modes, as you eliminate monsters, you gain experience points that will allow you to obtain perks.