Here is the full list of all 47 Temtem achievements.
Explore and complete a Lair with a 3-player party.
Decorate your house with at least 20 different items of furniture.
Capture, evolve, or hatch a Luma Temtem.
Obtain 20 different clothing items.
Complete all the FreeTem tiers in one week.
Capture, evolve, or hatch all the different Temtem species.
Participate in a Temtem tournament.
Capture, evolve, or hatch 151 different Temtem species.
Wear a fully dyed clothing item in each slot.
Wear a fully dyed clothing item in each slot, without repeating any dye.
Perfect a Temtem's TV using fruits.
Perfect a Temtem's SV using telomere hacks.
Capture or hatch a perfect Temtem.
Instantly hatch a Temtem using an Incubator Ticket.
Explore and complete a Lair.
Show a 5/5 Koish before showing a 4/5.
Capture one of the two available Temtem species at Saipark.
Ring the bell on any elevator.
Have an item 99 times in your backpack.
Set your squad with all of Tuwai's evolutions.
Rename a non OT Temtem.
Capture or hatch each starter Temtem.
Complete the 400 encounters successfully in a radar.
Successfully interact with the altar at Dabmis' Rest.
Drop a WishYouWell Coin in each well.
Successfully interact with the altar at Inner Flame.
Successfully interact with the altar at Sons of Crystal.
Successfully interact with the altar at Aisha's Hearth.
Successfully interact with the altar at Kami Shrine.
Defeat all Dojo Leaders in rematches.
Defeat Percival in a Dojo Leader rematch.
Successfully interact with the altar at Chieftain's Barrow.
Complete the main questline.
Get a level 100 Temtem with all perfected stats, fully TV trained, and including all egg techniques in its learnset.
Breed a Temtem with an egg technique.
Defeat Murdag in a Dojo Leader rematch.
Teach a Technique Course to a Temtem.
Equip a gear item to a Temtem.
Complete the classificatory rounds by playing 10 ranked competitive matches.
Complete three food parcel deliveries in the same day.
Defeat Sophia in a Dojo Leader rematch.
Defeat Rawiri in a Dojo Leader rematch.
Defeat Tihani in a Dojo Leader rematch.
Defeat Yareni in a Dojo Leader rematch.
Defeat Musa in a Dojo Leader rematch.
Defeat Dr. Sasaya in a Dojo Leader rematch.
Win a ranked battle.