- SECRET Welcome to the Underground! – Play for the first time
- SECRET Spelunking Maniac – Play 50 times
- SECRET Born for Spelunking – Play 100 times
- SECRET Novice Cave Explorer – Reach a depth of 300m
- SECRET Pro Cave Explorer – Reach a depth of 1000m
- SECRET Ghostbuster – Expel your first ghost
- SECRET Professional Ghostbuster – Expel 100 ghosts
- SECRET Treasure Hunter – Achieved a high score of 10000
- SECRET Fabled Treasure Hunter – Achieved a high score of 50000
- SECRET Cave Raider – Collect a total of 100 items
- SECRET The Fastest Man Underground – Earn first place in the race mode
- SECRET Earn first place in the race mode – Be ranked for the first time
- SECRET Strength in Numbers – Play Co-op mode online for the first time
- SECRET Rescue Squad Captain – Revive another Spelunker for the first time
- SECRET Underground MVP – Get MVP for the first time
- SECRET Mural Beginner – Collect a mural piece for the first time
- SECRET Mural Hobbyist – Collect 25% of mural pieces
- SECRET Mural Collector – Collect 50% of mural pieces
- SECRET Junior Spelunker – Complete the tutorial
- SECRET Spelunker Recruit – Complete the first level in Single Player mode
- SECRET Mine Remains Contemplation – Complete Area 1 in Single Player mode
- SECRET Gushing Cave Contemplation – Complete Area 2 in Single Player mode
- SECRET Ancient Ruins Contemplation – Complete Area 3 in Single Player mode
- SECRET Frozen River Contemplation – Complete Area 4 in Single Player mode
- SECRET Fossil Land Contemplation – Complete Area 5 in Single Player mode
- SECRET Illuminated Cave Contemplation – Complete Area 6 in Single Player mode
- SECRET Lava Cave Contemplation – Complete Area 7 in Single Player mode
- SECRET Mine Remains Celebration – Complete Area 1 in Co-op mode
- SECRET Gushing Cave Celebration – Complete Area 2 in Co-op mode
- SECRET Ancient Ruins Celebration – Complete Area 3 in Co-op mode
- SECRET Frozen River Celebration – Complete Area 4 in Co-op mode
- SECRET Fossil Land Celebration – Complete Area 5 in Co-op mode
- SECRET Illuminated Cave Celebration – Complete Area 6 in Co-op mode
- SECRET Lava Cave Celebration – Complete Area 7 in Co-op mode
- SECRET Master Cave Explorer – Reach a depth of 10000m
- SECRET In Memory of the Black Spelunker – Witness the death of the Black Spelunker
- SECRET Legendary Treasure Hunter – Achieved a high score of 100000
- SECRET Underground’s Next Top Idol – Play Co-op mode online with 30 people
- SECRET Mural Enthusiast – Collect 75% of mural pieces
- SECRET Ruined Facility Contemplation – Complete Area 8 in Single Player mode
- SECRET Pyramid Chamber Contemplation – Complete Area 9 in Single Player mode
- SECRET Ruined Facility Celebration – Complete Area 8 in Co-op mode
- SECRET Pyramid Chamber Celebration – Complete Area 9 in Co-op mode
- SECRET Mural Addict – Complete the mural
- SECRET Creature’s Chamber Contemplation – Complete Area 10 in Single Player mode
- SECRET Creature’s Chamber Celebration – Complete Area 10 in Co-op mode
- SECRET Spelunker King – Earn all trophies