General rules posted by PyTom last year.
Takes place in March
You can only begin actual production of your game in March
Brainstorming, plot outlining, character sketches, and anything that does not lead to the direction production of assets is okay
Sketches of sprite poses, backgrounds, and CGs is NOT okay
Creative Commons material is okay
There are no "winners," everyone who manages to release their game on March 31/April 1 has completed NaNoRenO
You may release a buggy version of your game by the deadline and fix it up later
Some folks may prefer to try this second type of challenge that was around back in 2006 (folks wanting to make demos may find this more helpful as it can give a bit more time but not tie up a team for an extended period of time)...
Not willing to limit participants to just the NaNoRenO challenge, IntRenAiMo was conceived to promote ren'ai developers to finish their projects and get new developer's into making their own ren'ai game. IntRenaiMo is a great alternative for those who have busy schedules and cannot make the NaNoRenO challenge. With IntRenAiMo, developer's may start their projects at any time but must aim for the March 31st deadline, coinciding with NaNoRenO.
Lots of interest in NanoReno last year with a lot of games released.
Good opportunity to work with other people and for newcomers to get their feet wet.
Some groups are recruiting all ready under the 'Recruitment and Services offered' - most in the 'Free projects looking for partners' and one under the 'I'm an artist' sections.
Hopefully, there'll be a general recruitment page for 'NanoReno 2016' [Deji started an excellent one last year, I hope she'll repost it as it set out the information really well].
(edit - I resurrected Deji's information and posted it as a new topic under the recruitement thread - 'Free projects looking for partners'). You can find it here if you're wanting to join a team or are looking for members to your team.
There's various information on NanoReno under 'Works in Progress' - WIP-NanoReno. Look at the two stickies:
'NanoReno Cheat Sheet & FAQ'
and 'NanoReno Games List 2015'
which have links to various pieces of information.
Probably wouldn't hurt to have some links to 'post-mortems' from previous years (so folks can get some idea of problems they may encounter) and the old-hands - post your useful tips please.
A tips thread that Alte found
So who's up to NanoReno this year?