Get your first kill in multiplayer.

Complete mission 4: "The Pipeline"

Kill an enemy by dropping a structure on them.

Defeat the mech in "Harvest Season"

Complete mission 1: "Homecoming"

Talked Emmett into completing the Rocket Drill

Traveled back in time to rescue Doc

Make goblins die of three different environmental hazards in a single level

Own at least one car each from the '60s, '70s, '80s, '90s and '00s.

Acquire a car manufactured in 1959 or earlier.

Perform the Level 3 magic attack with the Dwarf.

Discover 100 Locations

Repaired a piece of equipment.