The Wellcome Trust, a global charity dedicated to improving human and animal health, has teamed up with developer Toytek to bring a new game to iOS.
It's called Filth Fair, and it's all about dirt, including soil, dust, waste, refuse, filth, excrement, rubbish, and bacteria.
It's being released as part of Wellcome's Dirt season, which will see the organisation holding events this summer at the Eden Project and at Glastonbury and a few other festivals.
Clean up act
Filth Fair is a hidden words and meanings game set inside a huge painting by Mike Wilks, an artist famous for his best-selling 1986 book The Ultimate Alphabet.
Your task is to find and identify over 300 words buried inside numerous objects. Cryptic, descriptive, and word-substitution clues are on hand to aid you, with prizes, awards, and acclaim awaiting the best players.
According to Wellcome, Filth Fair has been created with the highest craftsmanship and without, "digital-virtual hocus-pocus."
Filth Fair will be available to play for free on iPhone, iPad, and online some time in March.