2e BattleSystem Miniatures Rules, fantasy mass battles very loosely based on 2e AD&D RPG. It is a kitchen sink set of rules, covering just about everything you would need in a pseudo-medieval miniatures game: remove magic, and it plays like a medieval game.
I enjoy these rules so much that I created my own Index using the word search function of Adobe Reader. On top of that, I massaged the legally purchased PDF into a format that Lulu.com would make into a POD hardcover copy for myself so I wouldn't need to worry about my aging softcover copies from e-Bay.
2e BattleSystem Skirmishes Miniatures Rules: all of the role playing without the tedious minutia of combat -- instead of an hour at the table to resolve five minutes of in-game combat, you can finish it in 10 minutes.
I rarely play this game, unfortunately. My players prefer the more complex combat system of the TTRPG. That is why I've never massaged the PDF into a Lulu-acceptable format. The 25mm sized spell templates are very useful, though, in my TTRPG's. I printed them onto transparencies and cut them out: colorful, addressing many spells and effects not covered in other spell templates on the market (Black Dragon Breath Weapon template, for example). This game resolves combat fast, and I love that!
Neither game really got much love from the publisher. Too bad. Both are excellent games.
Both books contained figure painting guides full of beautiful color photos. They even discussed terrain making techniques. Of course they are considered "old school" painting style, but they get the job done. There are dozens of ways to paint figures to put on the tabletop, and these methods still work today. The painting and basic terrain making guides would work for any genre, as far as they go. Cheers!