Here is the full list of all 29 Evoland achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
You have defeated Zephyros.
You have defeated the strongest decks of Double Twin!
You have shown your full deck of cards to Garen!
You killed an Octorac with a flaming arrow.
You found and killed a Choboko.
You have found all the hidden stars.
You have found the Hidden Lake.
You have found 20 hidden stars.
You killed a skeleton with the bow.
You killed a bat with a bomb.
You have found the Shrine of the Babamut.
You have killed 10 A'tuins
You bought the DVD player in Aogai.
You have looted 50000 glis in one play.
You have looted 20000 glis in one play.
You have killed 100 skeletons.
You have found 15 Double Twin cards.
You have used a bomb to destroy a wall.
You have travelled through time 12 times.
You have won a game of Double Twin.
You have beaten the Noria Mines boss with full health.
You have destroyed 20 pots in one play.
You unlocked a whole dimension!
You have found 10 hidden stars.
You unlocked a new way to progess in game.
You have found the Hidden Cave.
Now you know what we're talking about.
You unclocked the 16 colors display.
Congratulations!