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