A group of fans has initiated a project called Concord Delta to reverse-engineer Concord, a hero shooter from Firewalk Studios that Sony had declared "permanently sunsetting." They have developed matchmaking capabilities and planned private playtesting, but faced DMCA takedowns shortly after announcing their efforts. Following Concord's closure, refunds were issued to players, stripping them of legal entitlement to the game, complicating the reverse-engineering efforts. While boxed copies of Concord exist, the situation highlights the contrast between physical ownership and digital rights. The dissolution of Firewalk Studios raises doubts about a formal return for Concord, despite community enthusiasm for a potential free-to-play PC version.