Forge (NWC)
Forge town was a town type planned for Armageddon's Blade. It was based on a mix of technology and the Might & Magic universe, and had Goblins, Zombies, people and other "borrowed" creatures using among other things chainsaws, guns, jetpacks, and rocket launchers. However, it was scrapped in the end and replaced with Conflux town – due to protests from the fans.
The Forge in the lore
The Heavenly Forge itself was created by the Ancients, a futuristic race that exists in the HOMM and MM universe, presumably the creators of the races -- of the world. However, after the intergalactic web that connected the Ancients' worlds was heavily damaged by the alien race Kreegans, the Ancients lost connection with many of their worlds and the Heavenly Forge remained inactive on Enroth for many years.
In the events of Might and Magic 7, if you were to take the evil route (supposedly the canonical one), Kastore and his necromantic cult got hold of the Heavenly Forge and started using it as a 3D replicator to create equipment and everything needed to assemble a futuristic army to take over Enroth. In the end, Gelu, Catherine and Roland were supposed to take the Armageddon's Blade out of the Ancients' vault, the Varn 1904 Vault, and then use it to destroy the Heavenly Forge itself, an event to automatically destroy every evidence of the Forge's existence.
Graphics
The supposed structure of the town: