Here is the full list of all 80 Idle Wizard achievements.
Unlock Catalyst Memetics
Reach Veritallios level 100
Unlock Void Memetics
Unlock Pantheon
Reach Procreogenus level 100
Reach Tempoaeverum level 100
Unlock Voidlight Amalgam
Unlock Nix-Instability
Unlock Living Sin
Unlock Mechanos Apexis
Unlock Greater Chimaera
Reach Animatealia level 100
Unlock Herald of Rot
Reach Ardourium level 100
Reach Altermutus level 100
Reach Expedition level 100
Do first Change Realm
Complete all Challenges
Reach Legacy level 50
Unlock Desolator
Unlock Temporalist
Unlock Archon
Unlock Oni
Unlock Shaman
Unlock Heretic
Craft 100 items
Unlock weapons
Unlock Abolisher
Unlock Ironsoul
Unlock enchantment
Unlock Alchemist
Reach Legacy level 25
Unlock Ebonsand Behemoth
Total amount of Exiles 100
Unlock Pit Lord
Unlock Ley Keeper
Unlock Archivist
Unlock Anima Construct
Unlock Hungerer
Unlock Voidterror
Unlock Umbramancer
Unlock Shadow Stalker
Reach Legacy level 10
Unlock Arcanaworg
Unlock Simulacrum
Unlock Risen Giant
Unlock Ent
Unlock Chronomancer
Unlock Geode
Unlock craft
Unlock Exorcist
Unlock Interrogator
Unlock Trials
Unlock Voidmancer
Unlock Devourer
Complete first challenge
Unlock Voidfiend
Unlock Prodigy
Unlock Arcanist
Unlock Necromancer
Unlock attributes
Unlock Demonologist
Do first Exile
Unlock Spellhound
Unlock Golem
Unlock Daemon
Unlock Homunculus
Total played time 1 day
Unlock Zombie
Unlock Druid
Reach Apprentice level 5
Unlock Pixie
Buy first upgrade
Reach Chaos level 100
Reach Cerebros level 100
Reach Legacy level 75
Reach Legacy level 100
Unlock minor Gods
Unlock Mana source Memetics
Unlock Ascension Forms