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