Selaco, a DOOM-inspired FPS, is being hailed as the best retro shooter on Steam by fans, despite being in early access. May was an exciting month for fans of classic shooters with the release of two acclaimed games: Mullet Mad Jack and Solar Shock. Now, Selaco appears to be the latest gem among nostalgia-driven first-person shooters on Steam to evoke the same gunfight thrill as the original DOOM games.