Release Notes for RollerCoaster Tycoon® Deluxe

1.20 GOG v3 changelog (8 December 2025)

• Improved DirectX game renderer.
• New rendering options (Windowed Mode, Vertical Synchronization Control, Gamma Correction, Integer Scaling, Anti-Aliasing and more).
• Improved compatibility with game registry settings.
• Fixed DirectPlay installation.
• Fixed crash at launch on DEP-enabled machines.

1.20 GOG v2 changelog (13 November 2024)

• Applied DXWrapper for seamless support with modern displays
• Added dplayx.dll to avoid potential issues with game flagging the file as missing
• Validated stability
• Verified compatibility with Windows 10 and 11