There have been several edits recently adding game descriptions to the wiki. This is all good, but remember danbooru is neither a gaming site, nor a general wiki. Therefore, keep the descriptions concise, to the point, and *include* a one-sentence summary at the very beginning. Something like "A MMORPG", or "A small platformer game".
Example of what NOT to do:
http://miezaru.donmai.us/wiki/show?version=1&title=lineage2