Here is the full list of all 80 Skyward Collapse achievements.
Beat a game on score requirement Hard or higher.
Beat a game on score requirement Expert or higher.
Beat a game on score requirement Insane or higher.
Place the Winged Helmet token.
Place the Talaria token.
Place the Poseidon's Trident token.
Place the Caduceus token.
Place the Reginnaglar token.
Place the Poseidon's Golden Fleece token.
Place the Njord's Tyrfing token.
Place the Poseidon's Chariot token.
Place the Coins token.
Place the Apollo's Lyre token.
Bring your profile up to level 9.
Bring your profile up to level 8.
Bring your profile up to level 7.
Bring your profile up to level 6.
Bring your profile up to level 5.
Bring your profile up to level 4.
Beat a game on general difficulty Hard or higher.
Beat a game on general difficulty Expert or higher.
Beat a game on woe frequency Insane or higher.
Bring your profile up to level 3.
Beat a game on woe frequency Hard or higher.
Beat a game on woe frequency Expert or higher.
Bring your profile up to level 2.
Place the Ares's Helmet token.
Place the Pandora's Box token.
Place the Singasteinn token.
Place the Hera's Diadem token.
Place the Ullr's Bow token.
Place the Pan's Goat token.
Place the Tyr's Missing Hand token.
Place the Cornucopia token.
Place the Palladium token.
Place the Labyrinth token.
Place the Chair Of Forgetfulness token.
Place the Hebe token.
Place the Serpent token.
Place the Ares's Spear token.
Place the Gulltoppr token.
Place the Hofund token.
Place the Heimdall's Horn token.
Place the Athena's Olive Branch token.
Place the Ullr's Rune Stone token.
Place the Athena's Owl token.
Place the Ullr's Bone token.
Place the Necklace of Harmonia token.
Place the Nemean Lion token.
Place the Hlidskjalf token.
Place the Adamantine token.
Place the Sviagris token.
Place the Hera's Peacock token.
Place the Eitr token.
Place the Idunn's Golden Apple token.
Place the Ring of Gyges token.
Place the Andvarinaut token.
Place the Pan's Pipes token.
Place the Tyr's Scales token.
Place the Pan's Harpe token.
Place the Skadi's Wolf token.
Place the Apollo's Bow token.
Place the Delos token.
Place the Skadi's Bow token.
Place the Skadi's Skis token.
Place the Draupnir token.
Place the Zeus's Cloud token.
Place the Gugnir token.
Place the Zeus's Aegis Shield token.
Place the Hugin and Munin token.
Place the Zeus's Lightning Bolt token.
Place the Thor's Iron Gloves token.
Place the Mjolnir token.
Place the Thor's Lightning Bolt token.
Place the Brokkr token.
Place the Fenrir token.
Place the Midgard Serpent token.
Place the Norns token.
Place the Eldhrimnir token.
Place the Yggdrasil token.