曾经后口动物究竟是如何演化成地球上最成功的动物门类脊椎动物的？这是一条最强但也是最难的自由之路。玩家将扮演一只肉虫子从滤食开始逐步演化为脊椎动物。

Once, tiny creature deuterostomes began their journey, eventually evolving into the most successful group of animals on Earth—vertebrates. This is the strongest yet most challenging path to freedom. Players will take on the role of a soft-bodied worm, starting as a filter feeder and gradually evolving into a vertebrate.

游戏内有5种结局，解释了从后口动物到脊椎动物不同演化道路导向的结果，同一时期的三叶虫，海蝎子，头足类凭借着早期的利爪和盔甲迅速抢占了生态位，而我们的祖先后口动物却依然保留的毫无攻击性的外表，起步已经落后了，甚至差点退回安迪卡拉时的形态，但演化就是如此神奇，所有的选择都是成为了未来的伏笔...

The game features 5 different endings, each explaining the outcomes of various evolutionary paths from deuterostomes to vertebrates. During the same era, trilobites, sea scorpions, and cephalopods quickly dominated ecological niches with their early claws and armor, while our ancestor deuterostomes retained their harmless appearance, falling behind in the race and nearly reverting to the forms seen in the Ediacaran period. Yet, evolution is full of surprises, and every choice becomes a stepping stone for the future...

游戏玩法：

·“轻推”WASD来控制旋转方向

·鼠标点击左下角小方框选择进化方向

·左上角记录你所获得的分数

Gameplay:

·Press WASD to rotate the swimming direction

·Click on the small box at the bottom left to select the direction of evolution

·The top left corner records the number of points you have reached

游戏截图 / Screenshots of the game