There's some really interesting stuff there. The idea of taking Holmes & expanding well past what was intended while customizing the rules to fit & fix you home gaming is very intriguing to say the least.
If your unfamiliar of the Holmes D&D box's contents let me update & fix that from Rpg Geek's Holmes entry;" In 1977, this was essentially the second version of Dungeons & Dragons to be produced. The second printing of this version was published in January 1978. (The Advanced Dungeons & Dragons Monster Manual was published in 1977 and the Players Handbook was published in 1978.)
This boxed set included the following:
- A 46-page illustrated Dungeons & Dragons Basic Rulebook (First Edition)
- A Polyhedra Dice Set (D4, D6, D8, D12, D20) (fifth printing had chits instead of dice)
and depending on the printing either:
- Dungeon Geomorph tiles, Set 1: Basic Dungeon, and
- Monster & Treasure Assortment, Set One: Levels One - Three
OR (fourth to sixth printing)
OR (sixth and seventh printings)
Apparently this version was produced to clean up the game's presentation of essential rules and to make the game system more understandable to the general public so that it could sold in common toy stores for a retail price of $9.95.
It was marketed as "The original adult fantasy role-playing game for 3 or more players" for ages 12 and up.
The game book includes 4 pages of spells, 12 pages of monsters, and a 5-page game adventure. The four character classes were fighting men, magic-users, clerics, and thieves, and the four character races were men, elves, halflings, and dwarves."
Why is this important because it gave the general public hard access to the world of Dungeons & Dragons. This box set would later be completely streamlined,revised, & edited by Frank Mentzer.
Mentzer's work is incredible & hasn't been underscored in the hobby lately in my humble opinion. Holmes feels like a completely different game completely from the ground up & I think it is. The Dungeons & Dragons Rules Cyclopedia or the collected Menzter D&D box sets by Aaron Allston takes the 'grand game' of Gygax & it takes it places that make campaigns soar.