The N-Gage service was Nokia's mobile gaming platform that is available for several Nokia S60 smartphones. It is a follow-up to the N-Gage handheld game console. N-Gage is a part of Nokia's Oviinitiative.
Because N-Gage is a software based solution, the first generation MMC games are not compatible with the new platform, though some games are making a comeback in form of a sequel (e.g. System Rush: Evolution) or a remake/port (e.g. Mile High Pinball). Similarly, games developed for this next-gen N-Gage platform do not work on the original N-Gage nor N-Gage QD, adding to the fact that newer S60 software, including the N-Gage client and games, aren't binary-compatible with older S60 devices and vice-versa.
So far, the N-Gage website lists the following devices as compatible with the new N-Gage platform: Nokia N78, N79, N81, N81 8GB, N82-1, N85, N86 8MP, N95-1, N95-2 8GB, N96, Nokia 6210 Navigator, 6710 Navigator, 6720 Classic, E52, E55, E75, N86, N97, Nokia 5320 XpressMusic, Nokia 5630 XpressMusic  and Nokia 5730 XpressMusic 
Due to memory issues, hinted in an interview in February 2008, support for the Nokia N73, N93 and N93i was cancelled.
Closure of N-Gage
On October 30, 2009, Nokia announces that no new N-Gage games will be produced, effectively killing the N-Gage. All N-Gage services, which includes purchasing of games and various online features, had reportedly ceased operation at the end of 2010. AND the n-gage application is not available on the official website.