In Parallel, players can earn money by collecting and trading rare NFTs, participating in in-game tournaments, and completing quests. The game's native token, PARA, can be used to purchase NFTs and participate in various aspects of the game. Additionally, players can earn PARA by staking their NFTs and earning a portion of the game's revenue. Overall, Parallel offers various ways for players to earn money while enjoying the game's unique NFT card collecting and battling gameplay.