Here is the full list of all 49 In Woods achievements.
Get a Victory with Blade Master!
Get a Victory with Engineer!
Destroy all Trees & Breakables in a Run!
Pickup Area Reach 1000%!
Survivor Rank Reach S!
Freeze 20 Enemies at Same Time!
Walk Speed Reach 3!
Discharge 50 Projectiles in a Second!
Stack Poison Damage to 500!
Defense Reach 50!
Stack Lightning Damage to 500!
Stack Fire Damage to 500!
Level Reach 30!
Survive 30 minutes in Endless Mode!
Hit 20 Enemies with an Attack!
Defeat a Final Boss in 10 Seconds!
Get a Victory with Gravity Mage!
Dealing 500 Physical Damage with One Hit!
Perform 5 Attack in a Second!
An Enemy is Affected by All Element Effect!
Cut a Tree with One Hit!
Get a Victory in Robozone with Level 5 Hypervariant Mode
Get a Victory in Skeleland with Level 5 Hypervariant Mode
Get a Victory in Greenfield with Level 5 Hypervariant Mode
Get a Victory with Card Fighter
Get a Victory with Mercenary
Upgrade Ability 50 times in Lifetime!
Start a Run 10 times in Lifetime!
Get a Victory with Assassin
Kill 10,000 Monsters in Lifetime!
Get a Victory with Brute Fighter
Survive 100 minutes in Lifetime!
Get a Victory with Archer
Deal 1,000,000 Damages in Lifetime!
Perform 1,000 Ranged Attack in Lifetime!
Get a Victory with Knight
Get Attack by Monsters 1,000 times in Lifetime!
Deal 100,000 Element Damages in Lifetime!
Walk 10,000 meters in Lifetime!
Get a Victory with Spearman
Discover 50 Items in Lifetime!
Collect 1,000 Coins in Lifetime!
Collect 1,000 Woods in Lifetime!
Destroy 100 Breakables in Lifetime!
Recover 1,000 Health in any way in Lifetime!
Deal 100,000 Physical Damages in Lifetime!
Perform 1,000 Melee Attack in Lifetime!
Perform 1,000 Critical Hit in Lifetime!
Get a Victory with Fire Caster!