Upgrade codes: In the web and Google Play version, users can upgrade to a premium version of Colonize using a one-time IAP. If you would like to try the premium version, you can use these free upgrade codes at the in-game upgrade screen (on web or Android).
Codes: r78196, r76882, r45301, r68993, r25407, r73544, r12865, r34923, r14156, r18742, r84111
behaviorgames
Neil joined
behaviorgames.com develops video games used to study how people learn. We released our first mobile game for the Nook Color in December.