Nimmer's LetterTris Cost: $20 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions Nimmer's LetterTris: Nimmer's LetterTris is a tetris-clone with letters which have to be stacked so that they build words. In 3+1 (add your own) languages. Shareware $20. 30 days trial. By NimmerSoft.