Add image Elden Ring Nightreign Seamless Two Player Co-Op Mod RPG, Action

Add image Elden Ring Nightreign Seamless Two Player Co-Op Mod RPG, Action is listed as a Abandonware Reference entry in CheckpointDB's preservation database.

This record is treated as its own version or project, separate from normal game database entries.

Requirements are not individually verified yet, so the flags below should be treated as leads rather than confirmed instructions.