Achievements

Achievement	Icon	Description	Notes
Charlotte		Defeat tier 4 Saffron
White Knight		Defeat tier 4 Reva
Nerf This		Defeat tier 4 Gunner
Cold, Dead Hands		Defeat tier 4 Selicy
Reverse Engineering		Defeat tier 4 Hazel
Unbreakable		Defeat tier 4 Terra
Gun Control		Defeat tier 4 Shiso
Silence is Golden		Defeat tier 4 Violette
Eat the Rich		Defeat tier 4 Shopkeeper
Happily Ever After		Spare Terrable
Terrable		Execute Terrable
One Step From Eden		Reach the Gate
Sans-Serif		Execute Serif
Back to the Past		Beat Serif and get sent back
All For One		Beat the game with every character
Knife to a Gunfight		Kill Gunner or Shiso with a Slashfik spell
Calamity		Get a Calamity spell
Arch Sage		Have a spell from every Focus in your deck	This can be slightly easier to achieve with Chrono Saffron, Doubletime Violette or Shopkeeper, as those kits start with 4 focuses.
Disguised Toast		Cast 10 Jams in one battle
Desecration		Destroy a Self Defense hazard	This can be easily achieved by using Dismantle Hazel or Salvage to instantly destroy a Self Destruct Turret. Enemies can also destroy it and give you the achievement.
Not Even Close Baby		Win a boss fight with 1 HP	This can be more easily achieved by losing while the boss is Poisoned or standing on a Flame tile as they'll still take damage while they're attempting to execute you. Other options include being saved by Reva assist and avoiding the heal pickups, playing on Hell Pass 14, or obtaining Transcendence.
Plausible Deniability		Win a battle without using a Spell or Weapon	This can be done easily with Beat Reva with the Flak Jacket and tanking a couple of hits. It's also possible by using Pets or other Shuffle artifacts. Hazard nodes (preferably with a Volcano or Self Defense Turret) can also be used for this achievement as well as nodes with only Jellygens or Ghosts, however these can take some time, especially in the latter case.
Solo		Have 1 Spell in your deck	This can be easily achieved by playing either Solo Saffron or Bullethell Gunner.
Terraform		Have at least 16 broken tiles at the same time	This is easily achieved by simply playing Break Terra, Breaking all the enemies tiles as well as using a Crack or Break spell that affects your side of the field. You can do this in an empty field with just your weapon and some extra Mana.
Buzzer Beater		Kill the last enemy with the Fadeaway spell
Cannibal		Kill a Hostage with the Devour spell	Evil Hostages don't count as Hostages for this achievement's purposes.
Eggs in a Basket		Upgrade the same spell 4 times	This requires 10 Upgraders.
Hoarder		Have over 200 cardtridges in your deck	This can be easily achieved by using Viruspell or a Kunai deck. You can farm this achievement with Kunai Shiso.
The Best Defense		Have over 9,999 Shield	This can easily be achieved by using Blood Shield, Diamond Ring, or Shieldgen in a Distress zone with Turrets. Alternatively, using Build Hazel to hit a structure will work, as the game detects any entity for this achievement.
Absolute Zero		Have 0 Max Mana	This can be easily achieved by playing Bullethell Gunner and taking a Pact that reduces your Max Mana. Another option would be using Limit Break with D (Double) upgrade.
Soulless		Have 8 pacts at the same time	This involves needing to reach a Shop zone, taking Pacts, and refreshing the stock. This requires a minimum of 120 Money to refresh the shop 3 times. Note: The same pact can appear twice while refreshing, and you need 8 different pacts for this achievement.
Watch the World Burn		Cover the entire field in flames	This can be easily completed by using Back Burner (or being lucky with Carpet Bomb) along with Brushfire with a D (Double) upgrade.
Bravely Default		Beat the game without taking any spells	Upgrading and removing spells is allowed.
Ascetic		Beat the game without collecting any Artifacts
One Shot		Beat Hell Mode 14	This requires a lot of skill and luck. Shopkeeper or Solo Saffron having the easiest time as they have innate ways to increase their Max HP. Otherwise, taking Pacts that increase Max HP is the best way to go about completing this achievement.

Trivia

• The Achievement "Not Even Close Baby" is a reference to some of videogamedunkey's videos where he would have his character barely survive an encounter.

• The Achievement "White Knight" is a reference to the organization "White Knights" from VA-11 HALL-A.

• The Achievement "Knife to a Gunfight" is a reference to the saying "Don't bring a Knife to a Gunfight". This is a shared reference with the spell Knife.

• The Achievement "Terraform" is a reference to the process of "Terraforming", a forming of a planet to be similar to the earth.

• The Achievement "Buzzer Beater" is a reference to the shot "Buzzer Beater" from the real life sport Basketball.

• The Achievement "Nerf This" is a reference to a quote by D.Va from Overwatch when using her ultimate ability, Self-Destruct.

• The Achievement "Bravely Default" is a reference to the titular game series Bravely Default.

• The Achievement "Disguised Toast" is a reference to the canadian Streamer Disguised Toast.