Here is the full list of all 36 Spliced achievements.
Repair Scalping station
Repair Splicing station
Repair Observatory
Repaired all stations
Defeat every basic Eldritch enemy
Defeat every basic Goblin enemy
Defeat every basic Construct enemy
Defeat every basic Sanguine enemy
Defeat the Consumer, Berserker, Demon and Sentinel
Obtain tier 3 in every stability type
Acquire every Eldritch card
Acquire every Goblin card
Acquire every Construct card
Acquire every Sanguine card
Acquire every card
Win combat on your first turn
End combat with 1HP
Have 25 or more cards when you complete a run
Have 10 or fewer cards when you complete a run
Win your first run
Lose 10 runs
Acquire crooked rot
Equip 5 mutations at once
Exit a phase before turn 8
Apply over 50 poison on a single enemy
Earn 10,000 research points total
Win a run with three trials taken
Earn 450+ research points in a single run