Full list of all 49 Serious Sam: Tormental achievements.
The base game contains 30 achievements, and there are 2 DLC packs containing 19 achievements.
Discover the secret behind the vault doors
Reach even higher score
Reach Vault In short time
Rescue Bulb
Find and equip specified powers
Find weapons in Nightmare Caves
Reach high score with bulb
Collect all types of buddies
Reach Vault In Loop 3
Reach Vault In Loop 2
Chain 12 Bombhead kills
Do several brutal kills with Sam without losing HP
Reach high score
Find weapons in sea area
Complete the Nightmare Caves
Rescue Bomb
Defeat Exotech Larva in 30 seconds
Complete the Sea of Thoughts
Rescue Netricsa
Bring the first key back to keymaster
Complete the Mentals Fantasy
Discover Vault
Find the entrance to the pyramid
Have 1000 shields
Have 7 Serious Weapons and 9 Serious Weapons related Powers
Open 50 chests
Survive getting hit by explosions 30 times
Collect 13 serious weapons
Combo 250 figments
Combo 100 figments
Complete Fortress with Ugh-Zan Jr
Save Ugh-Zan Jr.