Monster Outbreak Steam Key
Monster Outbreak
The King's dimensional orb has malfunctioned, bringing hordes of monsters into the Kingdom. Defend your safeground against the monsters by gathering resources, building defenses, upgrading your arsenal, and surviving long enough to find the source of monsters and destroy it.
Arcade & Indie
40 Steam Achievements
Beginner Slayer
Kill 100 monsters
Hunter
Kill 1,000 monsters
Exterminator
Kill 100,000 monsters
Monster Trapper
Kill 100 monsters with structures
Base Builder
Kill 1,000 monsters with structures
Fort Knox
Kill 100,000 monsters with structures
Experienced Swordsman
Kill 500 monsters with your sword
Battle Axe Slayer
Kill 200 monsters with an axe
Bow Sniper
Kill 500 monsters with a bow
Hammer Slammer
Kill 200 monsters with a hammer
Master of Fire
Kill 1,000 monsters using fire towers
Spin Class
Kill 1,000 monsters using wooden spinners
Old School Crossbow Killer
Kill 1,000 monsters using crossbows
Cannon Lover
Kill 1,000 monsters using cannons
Dethroned
Kill the Slime King
Rock Slayer
Kill the Golem
Necromancer
Kill the Undead King
Not Easily Fooled
Kill the Trickster
Invader Defender
Kill 1,000 invaders
Bird Hunter
Kill 500 dimensional harpies
Giant Assassin
Kill 500 devourer giants
Visual Impairment
Kill 500 beholders
Arachnophobia
Kill 500 scorpions
Master Builder
Unlock every structure
Fashionista
Unlock every character skin
Animal Lover
Unlock every pet skin
Cartographer
Unlock all the maps
Horror Fan
Unlock all undead maps
Volcanologist
Unlock all lava maps
Flower Enthusiast
Collect 10 ghost flowers
Lumberjack
Collect 2,000 logs
Rock Collector
Collect 10 magic rocks
Miner
Collect 2,000 rocks
Eye Snatcher
Collect a beholder eye
Heated
Collect a fire stone
Sleeted
Collect an ice stone
Yeeted
Collect an electric stone
Rookie
Reach wave 20 on any map
Survivalist
Reach wave 50 on any map
Veteran
Reach wave 100 on any map
- Single-Player
- Multi-Player
- Co-op mode
- Online Co-op
- Shared/Split Screen
- Steam Achievements
- Full Controller Support
- Steam Cloud