Here is the full list of all 49 Project Lazarus achievements.
Unlocked Desert Stage
Unlocked Tombstone
Unlocked Titus
Unlocked Arachmech
Unlocked Dozer
Now go get some upgrades at the armory
Unlocked for purchasing during Early Access days.
Unlocked Grasslands Hyper Mode
Unlocked Desert Hyper Mode
Unlocked Arctic Glacier Stage
Unlocked Arctic Glacier Hyper Mode
Unlocked Striker
Unlocked weapon evolution for the first time
Reached Level 50 for the first time.
Reached Level 70 for the first time.
Reached Level 100 for the first time.
Reached Level 110 for the first time.
Reached Level 120 for the first time.
Reached Level 130 for the first time.
Reached Level 135
Unlocked Outpost Stage
Unlocked Outpost Hyper Mode
Reached Commander Rank
Reached Number Four Rank
Reached Number Three Rank
Reached Number Two Rank
Reached The One Rank
Earned 50k Caverium
Earned 100k Caverium
Earned 150k Caverium
Earned 200k Caverium
Earned 250k Caverium
Earned 300k Caverium
Earned 350k Caverium
Earned 400k Caverium
Earned 450k Caverium
Earned 500k Caverium
Earned 600k Caverium
Earned 700k Caverium
Earned 800k Caverium
Earned 900k Caverium
Earned 1M Caverium
Unlocked Praetorian
Unlocked Benedict
Unlocked Alabaster
Unlocked Drake
Unlocked Runner RX
Unlocked Zero
Unlocked Challenger Stage