The game is designed to be non-competitive, allowing all players to collaborate together.

non-competitive 是由前缀 non-（表示“非、不”）和形容词 competitive（竞争的）组成的复合形容词。competitive 来自动词 compete（竞争），加上后缀 -tive 变成形容词。non-competitive 合起来表示“非竞争性的”，即不强调竞争或对抗的性质。