Here is a list of some trusted apps and games that offer the possibility of earning cryptocurrencies:

1. Sweatcoin

Rewards you with cryptocurrencies for walking. The reward is simple but fun if you like physical activity.

2. Axie Infinity

A blockchain-based game. You need to buy characters (Axies) to start. It allows you to earn SLP that can be traded.

3. Gods Unchained

A free blockchain-based card game. You earn cards that can be sold as NFTs.

4. RollerCoin

A cryptocurrency mining simulation game. You can earn Bitcoin or Ethereum based on your performance in mini-games.

5. CryptoPop

A simple game similar to Candy Crush. It rewards you with ETH or LTC.

Tip:

Start with free apps first to understand how it works and avoid risks. If you want more details about any game or app, I will gladly help you!