If you are looking for help playing the game itself, INFRA is divided into multiple parts/chapters. You can find comprehensive guides on the Steam Community:
: A checklist for finding all repairable spots and taking required photos for a perfect playthrough. Important Troubleshooting Infra.Complete.Edition-CODEX.part2.rar
: If you receive a "Checksum Error" or a message saying a volume is missing, ensure part2.rar is exactly in the same folder as part1.rar and has not been renamed. If you are looking for help playing the
: Once extracted, you will likely find an .iso file. Mount this virtual disc or extract it. Infra.Complete.Edition-CODEX.part2.rar
: Details the service tunnels and power station.