Risk of Rain -
Engineer - How to Unlock: To unlock the Engineer you must purchase a total of forty drones. Moveset: Tri-nade - Launch three grenades for 3x80% damage. Cooldown: 0 Seconds. Bounding Mine - Drop a trap that explodes for 300% damage. Hold up to 15. Cooldown: 6 Seconds. Thermal Harpoons - Launch four heat-seeking harpoons for 4x250% damage. Cooldown: 5 Seconds. Auto-Turret - Drop a turret that shoots for 3x100% damage for 30 seconds. Hold up to 2. Cooldown: 40 seconds.