It sounds like you're encountering a common error when trying to run a cracked game: "Solid feature for Steam must be running to play this game."
This message typically appears with games that use , CEG (Custom Executable Generation) , or Solidcore DRM (used in some newer Denuvo-protected games). A crack is supposed to bypass Steam, but if this error shows up, it means the crack didn't apply correctly or is incomplete. steam must be running to play this game crack