[KaktoR]

You could use components

https://jrsoftware.org/is6help/index...ponentssection

[Files]
Source: "C:\GAMES\Game1\*"; DestDir: "{app}\Game1"; Components: Game1;  Flags: ignoreversion recursesubdirs createallsubdirs
Source: "C:\GAMES\Game2\*"; DestDir: "{app}\Game2"; Components: Game2;  Flags: ignoreversion recursesubdirs createallsubdirs

[Icons]
Name: "{group}\Game1"; Filename: "{app}\Game1\Game1.exe"; Components: Game1; Tasks: startmenu
Name: "{group}\Game2"; Filename: "{app}\Game1\Game2.exe"; Components: Game2; Tasks: startmenu
Name: "{commondesktop}\Game1"; Filename: "{app}\Game1\Game1.exe"; Components: Game1; Tasks: desktopicon
Name: "{commondesktop}\Game2"; Filename: "{app}\Game2\Game2.exe"; Components: Game2; Tasks: desktopicon

[Components]
Name: Game1; Description: Game 1; ExtraDiskSpaceRequired: <in bytes>; Types: full compact
Name: Game1; Description: Game 2; ExtraDiskSpaceRequired: <in bytes>; Types: full