A genetics puzzle game for iPhone
Allele Garden
Breed peas like Gregor Mendel
Brünn, 1856. In a quiet abbey garden, a friar is crossing pea plants and counting every flower. Nobody yet knows why children resemble their parents. Drag one plant onto another, watch four seedlings grow, and rediscover the laws of heredity one generation at a time.
Discover, don't memorise
Every cross grows the exact ratio in front of you, so the laws of heredity appear in your own garden instead of in a textbook.
Cross and grow
Drag one plant onto another in the same row. Four seedlings grow below. Each plant crosses only once, and every level has a cross limit, so plan ahead.
Watch white come back
White flowers vanish in F1 and return in F2. See 3 : 1 appear in your garden, then 9 : 3 : 3 : 1 with two traits.
Mendel's Lens
Discovery levels hide the genes. Puzzle out what happened, and the lens reveals the gene beads inside every plant.
A field of 1,000 seeds
Sow a whole field and watch chance land close to Mendel's real counts: 705 purple to 224 white.
Tools of the trade
A pollen brush for selfing, a bee for backcrosses, pins to keep the seedlings you need. Frost and pea weevils make some plots tricky.
Your specimen notebook
Every discovery becomes an illustrated page with cross diagrams, ratios and the real history behind it.
A story told in paper and ink
From the first pea crosses to the rediscovery of Mendel's work and the chromosome.
105 handcrafted levels in two parts
Each chapter is set in the year of its discovery, with its own garden, weather and story.
Mendel's garden
- One trait · dominant and recessive, segregation
- True-breeding lines · genotypes, selfing
- Hidden genotypes · the test cross
- Two traits · independent assortment
- Plant breeding · backcrosses
The notebook found again
- Incomplete dominance · Correns, 1902
- Pink flowers and peas · two genes
- Hawkweed · the mystery Mendel never solved
- Lethal genes · Cuénot, 1905
- Epistasis · Bateson, 1909
- Gene linkage · Morgan, 1911
Who you'll meet
Brother Gregorthe friar with a pea garden
Mrs Liesla Vienna florist
Mr Antona seed hunter
Professor Nägelia sceptical botanistMendel's real count of purple and white flowers in his F2 generation, close to 3 : 1. Allele Garden keeps to the history: real dates and real data, with sources in the game. Characters and dialogue written for the story are clearly marked as fiction.
Play the first 29 levels free
One purchase unlocks the whole garden. No ads, no timers, no energy, and it plays fully offline.