Repetendium

"Repetendium is a single-player, action-packed rogue-lite game with perfected mechanics and great music. Wield various deadly weapons, gain experience to build power, and choose from a range of perks to customize your gameplay. Compete on the global leaderboard and fight against unique enemies, including a chicken with a gun. The early access version includes a new mode for grinding and upgrading for power-based unlockables."