When you hear Evolve‘s premise, it’s not exactly difficult to trace its lineage back to Left 4 Dead. Four vs one asymmetrical human vs monster competitive co-op? It’s a markedly different experience from developer Turtle Rock’s previous work (they collaborated with Valve) once you’re on the hunt, but it’s a natural, er, evolution of the undead phenom. Left 4 Dead’s staying power, however, wasn’t entirely homegrown. Valve and Turtle Rock gave it festering brains and an undying heart, but modders gave it legs. What about Evolve, though? I’m optimistic about what I’ve played, but I could definitely see it fading into obscurity without frequent support. Are mods a solution? Maybe, but not straight out the gate.