I fell down the rabbit hole of looking at chess sets this morning (damn- morning wasted) and I got a neat idea for one. Hoever, I am not that into chess so feel free to take the idea and run with it.
For one side, find the most industrial metal chess set you can and use the pieces from one side (or a combination. maybe) I’m envisioning black metal here but something else could be more fitting. For the other side, have carved wooden trees- different species for the different pieces. Say, fir for the bishop and maple for the rooks… or a tree with treehouse for the rooks. It could also be done with tree spirits but it really should be carved of wood. Use stones for the pawns. Could be named “Hope vs Dispair”… seeing as one could argue either case for either side.