I am not making a retro-clone at least at this time but just to make up for the last couple of unpleasant posts here a a few bits on what you might see in a 5 Stones retro-clone
6 Classes, 1 for each stat
White Mage ( WIS replacing cleric)
Rogue (DEX, I like Rogue vs thief it covers more types of characters)
Ranger (CON, this is a little weird but it seems to fit, Rangers would be all about heartiness)
Bard (CHA. This is the face-man class, not a spell using jack of trades
I like the way Next and Iron Kingdoms do this. Basically is a package that anyone can take. Want a roguish mage? Take Wizard class and add Thief Background. This would also cover subclasses
Secondary Skills ala 1e or Occupations ala Dungeon Crawl Classics
These would be things D&D calls thief skills. Anyone can do them to a degree, Rogues would just do them better
Nothing special here. Humans get a bump though.
Stop around 10-14 or so.
A random cool ability that helps make each PC a special snowflake.
The Return of Planescape? - Curious. There is a brief note on this 'countdown' at Enworld.
15 hours ago