As good of a thread as any to propose my personal mixing of D&D and 7d2d, which considering i only play in single player games was only in my head until i shared it now.
When i pretend my survivor is a hobbit, i use pistols and traps and build my base to have an outward appearance of cobblestone with sod on the roof/sides. Hobbits have incredible gardens and i focus on food, cleverly hiding and sneaking whenever I can. It's a very slow and deliberate play style.
When i pretend to be a dwarf, i use shotguns and clubs and dig a very deep stone fortress with a lot of doors. I also try to build a "great forge" which consists of about 8 forges plased back to back on cental brick hearth and chimney. Very heavy armor and i usually rush my foes (as dwarfs are very good sprinters- doncha know?).
Elf = sniper rifles, bows, and blades with a tree top bungalow. (Never let those filthy zombies touch you). My fort has gotta be as pretty as you can make something in 7d2d. As such, i always try to mix some snowy white tree seeds into either a desert or boreal forest to make it look magical. Also choosing a mountain site with a nice view of a lake is totally worth it.
Orcs = any type of weapon but absolutely no farming. I lead a nomadic life trying to utilize other people's forges and work benches so I'm not tied down.
Most forts are simply digging back into a hillside for the night wherever i am and blocking the hole behind me. And digging my way out in the morning. It's invigorating! I also know it's dumb, but i eat rotten meat and raw eggs - and a lot of antibiotics!
Each has it's own play style and i had it down to a tee in 16.4. Now we are on A17, and I'm just trying to get a toon to day 2 without dying once, but I'm sure I'll get back soon enough.
Hope you enjoyed my rambling and it might spark some ideas or interest for you.
Happy hunting!