My very first guide! LET'S GOOO!

Aside from Steam achievements, Temtem also has ingame trophies called Kudos. Every achievement should also unlock the corresponding Kudos. However, there are much more Kudos than there are Steam achievements meaning not all Kudos are tied to achievements.

Currently there are 47 Steam achievements.

Once you have defeated a Dojo leader during the story you can challenge them to a rematch once per week (resets on mondays). Note that after defeating a Dojo leader for the first time you will only be able to challenge them next week. Also, Dojo rematches work by the same principle as competitive PvP battles so you will need to make a competitive team loadout (can be done at any TemDeck).

Sophia
Defeat Sophia in a Dojo Leader rematch.





Tihani
Defeat Tihani in a Dojo Leader rematch.





Dr. Sasaya
Defeat Dr. Sasaya in a Dojo Leader rematch.





Yareni
Defeat Yareni in a Dojo Leader rematch.





Musa
Defeat Musa in a Dojo Leader rematch.





Rawiri
Defeat Rawiri in a Dojo Leader rematch.





Murdag
Defeat Murdag in a Dojo Leader rematch.





Percival
Defeat Percival in a Dojo Leader rematch.





I'm the leader
Defeat all Dojo Leaders in rematches.





These are pretty self-explanatory. Simply defeat every Dojo leader in a rematch and it will unlock their corresponding achievement. Once you have defeated all of them the "I'm the leader" achievement should pop up. Note that you DO NOT need to defeat all of them within the same week. For example, if you defeat Tihani, Sophia and Musa this week you can defeat the rest of them next week and it will still get you the collective achievement.

Complete the 300 encounters successfully in a radar.






To obtain a radar you will need to defeat a Dojo leader in a rematch. You can get 3 radars per week from 3 different Dojos. All Dojo rematches except Rawiri and Murdrag will give you a radar that corresponds to their typing (for example, Sophia gives Water and Wind type temtem radars). As of 1.0 Radars are no longer obtained through Dojo Rematches. Now Radars need to be purchased using Feathers in the endgame location Tamer’s Paradise. Simply complete any radar by chaining encounters up to the maximum that is 400 300. The radar will break and you will get this achievement.
NOTE: Make sure not to break the radar before maxing it out.

Equip a gear item to a Temtem.






To unlock this achievement you simply need to equip any gear item on any temtem. This can be done any time by inspecting a temtem in your squad.

Teach a Technique Course to a Temtem.






This one is self-explanatory. You will need to have found at least one technique course and have a temtem that can learn it. Simply go into your squad, interact with a temtem and "equip" one of the technique courses (located under temtems learned techniques). Also can be done to temtems in your TemDeck.

Breed a Temtem with an egg technique.






The breeding center can be found in Omninesia (second island). To pass on an Egg Technique one of the parents has to have it "equipped" in their active moveset. Before finalizing breeding you will be able to see a preview of the child with approximate stats and Egg Techniques that will be passed on to it through parents (moves marked with an egg icon). Once your egg with an Egg Technique hatches this achievement will pop up.

Instantly hatch a Temtem using an Incubator Ticket.






The breeding center is located in Omninesia (second island). To get this achievement you need to use an Incubator Ticket to hatch an egg. Incubators are located within the breeding center, next to TemDecks. Incubator Tickets can be found in the world as loot or obtained from various activities.

Capture or hatch a perfect Temtem.






For this achievement you need to capture or hatch a temtem that has all SVs at 50. Obviously, easiest way how to get it is by breeding a perfect temtem.
NOTE: When achievements were just added a bug allowed some people to get this achievement by catching a temtem with a single SV being 50. It has since been patched.

Get a level 100 Temtem with all perfected stats, fully TV trained, and including all egg techniques in its learnset.





Self-explanatory. You need to acquire a perfect temtem (all SVs are 50) with all possible Egg Techniques, fully TV train it, train it to max level (which is 100) and the achievement will pop up.
NOTE: Trading a level 100 temtem that meets the requirements from another player might work too according to description, but I can't confirm that.

Perfect a Temtem's TV using fruits.






Self-explanatory. You need to get a single TV stat of any temtem to 500 using fruits. The fruit vendors can be found in Omninesia (sells fruits that add or remove 20 TVs), Kisiwa (is right outside Uhuru, sells fruits that add or remove 1 TV) or the smoothie vendor in Arbury (found in the Greenglen Forest right next to the inn, sells smoothies that add or remove 50 TVs).

Perfect a Temtem's SV using telomere hacks.






Simply use a Telomere Hack to get a single SV value of any temtem to 50. Also works with Hotfixes.

Have an item 99 times in your backpack.






To get this achievement you need to max out any item stack. Easiest and most common way how this achievement will be unlocked is by buying 99 Temcards at any shop that sells them. If you already have a stack of 99 items since before achievements were added this should automatically unlock when you log in.

Ring the bell on any elevator.






A secret achievement. All elevators in the game have a bell icon under the floor selection buttons. Simply press the bell and the achievement will pop up. Currently earliest this can be done is in Cipanku (fifth island) city Neoedo.

Complete the main questline.






A secret achievement. Simply complete the main story and this achievement will unlock.

Capture one of the two available Temtem species at Saipark.






Once you have unlocked the Rock Hopping Gear you can visit Saipark in Deniz (first island). Every week (resets on mondays) two temtem are offered there that have modified features. The setup alternates every two weeks, one week the two temtem will have high SVs and possible Egg Techniques learned, another the temtems at Saipark will have increased Luma chances (for example 3x or 4x Luma chance). To get this achievement you simply need to capture one of the two available Saipark temtem.
NOTE: In Saipark only special Temcards called Saicards can be used. They can be purchased from the vendor inside the Saipark or at the stand right before you enter the park. There are also other common temtem that can be encountered in the Saipark (Pigepic, for example). Those don't count towards the achievement, only the two unique to the current week setup.

Complete three food parcel deliveries in the same day.






Parcel deliveries are daily quests. You can find the Postal Service building in Kisiwa (fourth island) town Uhuru. Talk to the receptionist and she will give you food parcel delivery quests. How many parcels you get per day is random, you can get 1 - 3 deliveries. To get this achievement you need to get 3 delivery quests. Simply deliver them to the NPCs requested and once you return to the quest giver at the Postal Service building and you get your rewards the achievement will unlock.

Explore and complete a Lair.






Lairs are a group activity that requires 3 - 5 people to enter. Completing Lairs gives you various rewards (including hacks) and once per week you get a mythical temtem egg. Currently there are 2 3 lairs - Anak Sanctum within the Anak Volcano (In Omninesia) and Highbelow Sanctum found in Sacred Lake (In Kisiwa). As of 1.5 update there is now a third lair called Pansun Sanctum, to access it you must complete a quest that starts at the Neoedo Lab (in Cipanku). Completing either of them will unlock this achievement.
UPDATE: With the 1.5 update you can now do solo or 2 people co-op lairs. You get better rewards for 3-5 people lairs but getting the eggs is now possible solo. Can't confirm if solo lairs unlock the achievement but logically it should.

Explore and complete a Lair with a 3-player party.






Self-explanatory. Simply complete a Lair with a 3 player party. Free up an evening or two, finishing a Lair with a minimum required player party can be tricky.

These achievements are unlocked by evolving a Tuwai at each of the corresponding altars. To gain access to the altars you will first need to go through a series of battles against altar "worshippers" and their leader. They only need to be defeated once to get through but you will need a squad of temtem that have the required typings.

Aisha's Hearth
Successfully interact with the altar at Aisha's Hearth.





Aisha's Hearth is located in Kisiwa (fourth island). To challenge the worshippers you will need a squad of Earth type temtem. The altar evolves your Tuwai into Turoc.

Chieftain's Barrow
Successfully interact with the altar at Chieftain's Barrow.





Chieftain's Barrow is located in Arbury (sixth island). To challenge the worshippers you will need a squad of Melee type temtem. The altar evolves your Tuwai into Tutsu.

Inner Flame
Successfully interact with the altar at Inner Flame.





Inner Flame is located in Omninesia (second island). To challenge the worshippers you will need a squad of Fire type temtem. The altar evolves your Tuwai into Tulcan.

Dabmis' Rest
Successfully interact with the altar at Dabmis' Rest.





Dabmis' Rest is located in Deniz (first island). To challenge the worshippers you will need a squad of Water type temtem. The altar evolves your Tuwai into Tukai.

Kami Shrine
Successfully interact with the altar at Kami Shrine.





Kami Shrine is located in Cipanku (fifth island). To challenge the worshippers you will need a squad of Digital type temtem. The altar evolves your Tuwai into Tuwire.

Sons of Crystal
Successfully interact with the altar at Sons of Crystal.





Sons of Crystal is located in Tucma (third island). To challenge the worshippers you will need a squad of Crystal type temtem. The altar evolves your Tuwai into Tuvine.

Set your squad with all of Tuwai's evolutions.






Secret achievement. To unlock this achievement you will first need to evolve 6 Tuwai into 6 different evolutions (check the Altars section of this guide). Once you have your 6 different Tuwai evos simply put them into your active squad and the achievement will unlock.

Obtain 20 different clothing items.






Self-explanatory. Simply buy 20 different clothing items from clothing stores or get them as rewards. If you already have obtained at least 20 clothing items before achievements were added you should get this automatically once you log in.

Wear a fully dyed clothing item in each slot.






Self-explanatory. Dyes can be purchased in every clothing store as well as received as rewards for various activities. Most clothing items have 2 dye slots. Simply dye everything you're wearing and the achievement will pop up.
NOTE: Dyes are a single use item. Once you use them - you lose them.

Wear a fully dyed clothing item in each slot, without repeating any dye.






Self-explanatory. The same as the "Trendsetter!" achievement, except every clothing item you're dying has to be dyed with different dyes that can't repeat. Both achievements can be unlocked at the same time.

Complete all the FreeTem tiers in one week.






FreeTem releases is a weekly activity (resets on mondays). FreeTem office can be found in Omninesia (second island) right next to the breeding center. To get this achievement you need to unlock the highest tier rewards by releasing the required number of temtem. The numbers needed changes weekly.
UPDATE: 1.5 update changed how FreeTem works and now instead of just having to release a set number of random temtems you need to hunt 4 specific ones, with different numbers of each one required. Based on description you should need to release all 4 required temtem groups.

Win a ranked battle.






A competitive PvP achievement. Self-explanatory. Simply make a competitive squad (can be done through the Competitive tab of the menu), queue up for a competitive match and defeat your opponent.

Complete the classificatory rounds by playing 10 ranked competitive matches.






Before you can see you TMR ranking you need to complete 10 competitive qualification matches. That's what this achievement requires - simply complete those 10 qualifying matches and you will unlock this achievement. You don't need to win any of them to get this achievement.

Participate in a Temtem tournament.






Tournaments are a weekly competitive activity. There are three tournaments happening around every Saturday/Sunday (depending on your timezone).
Official tournament times are Sunday 1 am UTC, 9 am UTC and 5 pm UTC
Once you open the Tournament tab from your game menu you will see countdowns to every one of them making it easy to pick one that's convenient with your timezone. Simply subscribe to one or more of them and be online when the tournament starts, it will begin automatically if enough players have entered before the time runs out.
To get this achievement you only need to participate in a tournament, you don't need to win one. Even if you lose you first match the achievement will unlock after the match is over.

Drop a WishYouWell Coin in each well.






For this achievement you need to drop a WishYouWell coin into one well on every island. WishYouWell coins can be found in the world as loot, received as a reward for most activities or traded from other players.
More info on Wishing Wells including their reward pools and locations can be found on the Temtem Wiki[temtem.fandom.com]

Show a 5/5 Koish before showing a 4/5.






Fishing is a weekly activity found at the Nuru Lodge in Kisiwa (fourth island). Every week a different type Koish can be caught near the lodge. Inside the lodge, near the NPC you can see a board showing and describing the 5 traits you need to look for in a Koish to receive the weekly rewards. You get rewards for bringing in one 4/5 Koish (4 traits match the required ones) and bigger rewards for bringing in a 5/5 (all 5 traits are exactly as requested). If you catch and bring in a 5/5 Koish before bringing in a 4/5 one you get rewards for both 4/5 and 5/5 Koish. That's what you need to do for this achievement, bring in a 5/5 Koish without claiming the 4/5 rewards first.
There isn't really a strategy for it, just RNG. In one of the previous updates a "pity timer" has been introduced meaning every 1000th 500th Koish is guaranteed to be a 5/5. Bring some snacks, this might take a while.
NOTE: Every player has a different requested Koish and you need to be its Original Tamer to claim the rewards meaning you can't cheat by getting the right Koish from another player.

Back to the Roots
Capture, evolve, or hatch 151 different Temtem species.





Collector
Capture, evolve, or hatch all the different Temtem species.





Both of these achievements require you to complete your Tempedia. Mythical temtem also count towards them. For the "Collector" achievement you need to acquire all temtem available in the game. Currently Temtem has 165 species, getting all of them will unlock both achievements.
NOTE: If you have played Temtem before achievements were introduced and already have some temtem unlocked in your tempedia you will have to rehatch, recatch or reevolve them, the achievement counter starts at 0.

Capture, evolve, or hatch a Luma Temtem.






Self-explanatory. If you have done this before achievements were added you should automatically unlock this achievement when you log in.

Capture or hatch each starter Temtem.






To get this achievement you simply need to hatch or catch all 3 starter temtem - Houchic, Smazee and Crystle. As of Arbury update all 3 of them are obtainable in the wild. Here's where you can find them:













Houchic and Smazee can be found in Arbury (sixth island).













Crystle can be found in two locations in Tucma (third island)

Decorate your house with at least 20 different items of furniture.






For this achievement you will need to own a house. Player housing is located in Omninesia (second island), to acquire a house you will need to do a quest. Once you have your house you need to get at least 20 different furniture items and place them in your home. Furniture can be bought in Furniture Stores on all islands as well as received as rewards for various activities.
NOTE: If you have acquired and decorated your house before achievements were added you should get this achievement upon logging in.

Rename a non OT Temtem.






For this achievement you need to rename a temtem you got from another player. This can be done at the Citizen's Bureau Central Offices building found in Neoedo in Cipanku (fifth island). Renaming a non-OT temtem costs 20 000 Pansuns.

Well, that's it! Hopefully this guide helps you achieve that sweet, sweet 100% completion rate.
In case more achievements get added or requirements get changed I plan to update this guide. It is possible that some achievements might get removed, making this guide I noticed 2 of them already missing (there was an achievement for obtaining Fat Burner gear item and capturing or hatching an all-green stat temtem).

Bye! Happy hunting!