Here is the full list of all 26 Steamroll achievements.
Get all 3 awards in Level 1
Destroy the main elevator.
Break the rocks in the corridor.
Unlock Garcia's Scarabeus.
Rescue Garcia from her Scarabeus.
Get Valuska's driller back to you.
Find the pieces of the broken driller.
Make Garcia unlock your path.
Get all 3 awards in Level 2
Get all 3 awards in Level 3
Get all 3 awards in Level 4
Get all 3 awards in Level 5
Get all 3 awards in Level 6
Get all 3 awards in Level 7
Get all 3 awards in Level 8
Get all 3 awards in Level 9
Get all 3 awards in Level 10
Get all 3 awards in Level 11
Get all 3 awards in Level 12
Get all 3 awards in Level 13
Get all 3 awards in Level 14
Get all 3 awards in Level 15
Get all 3 awards in Level 16
Get all 3 awards in Level 17
Get all 3 awards in Level 18