Conceptually useful, but the download ecosystem for it is currently sketchy. Unless you’re comfortable vetting unknown executables, stick with WeMod or a pre-edited save file from a trusted user.
Use a trainer (WeMod or Cheat Engine table) for unlimited resources instead – less risk of save corruption, no manual hex editing. Save editors are more useful for editing specific item quantities or unlocking DLC gear without buying it. Dead Space 3 Save Editor Download Pc
If you still want a save editor, find through a trusted modding forum (like ZenHAX or Nexus Mods comments section ) – never via the first 5 Google results. Conceptually useful, but the download ecosystem for it