Having announced the UMD-less PSP go at E3, Sony is ramping up its efforts on the digital distribution front. Announced at the company’s Gamescom 2009 conference were Minis, small downloads that take advantage of the reduced development costs on PSN. A size limit of 100MB will be imposed on any titles released on the Minis section.

Minis are due out October 1 on PSN. While specific title names went unmentioned, Sony demoed a game with block matching elements, resembling Lumines. Another title shown on-screen was a top-down brawler. Relatively simple games with simple premises seem to be the focus here, not large-scale epics.

Read more: Sony To Enable Cross Platform Play With PSP Minis?, Sony: Popular Minis Could Make Jump To UMD, ESRB Approval A Significant Cost Hurdle for PSP Minis, Sony May Provide PSP Dev Kits On A Gratis Basis, PSP Filer 6.0