The KEX port of classic Doom has been out for awhile and have been updated multiple times. This port is the latest one that ...
Dark Ages is worth spicing up with a fresh mod of Fallout: Vault 666, which brings the second installment of id Software studio's series into the reality of the popular post-apocalyptic brand.
Between that and a new official map format (named ID24 ... represents the new ground floor—the baseline to which modern Doom mods should aspire to.