According to The Guardian
In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.
A year later, people playing an astronomy game called Planet Hunters found a curious planet with four stars in its system, and to date, they've discovered 40 planets that could potentially support life, all of which had been previously missed by professional astronomers.
Here are some cool games that people can play that help further scientific research:
Happy Match is a classification game.
Living Links is an identification game.
Ora is a game about using techniques and strategies to protect New Zealand's rainforests from invading possums. Successful techniques from the game will eventually be used by real people in the field.
Galaxy Zoo is a neat game about classifying the universe to discover its history. Some players may even get to have places they discover named after themselves.
A similar game is Planet Hunters where you search for planets.
Whale FM is a game where players create matches between audio recordings of pilot whales and killer whales.
EyeWire is a game dedicated to mapping the human brain.
NanoCrafter is a synthetic biology game.