ScummVM made its debut twenty years ago this week, the emulator and platform that was named after the classic LucasArts point-and-click engine created by Ron Gilbert for Maniac Mansion called SCUMM. Not only created for old copies of classic LucasArts games to be played on modern hardware ScummVM quickly evolved into an all-things point-and-click. So yeah, it's worth celebrating.

Especially when you consider that it's a core part of GOG.com releases covering Sierra, LucasArts, and other titles. Remakes and remasters aside, ScummVM has evolved as the way to play just about any classic adventure game on modern PC hardware. And in celebrating its 20th anniversary support for 2.5D games has arrived via ResidualVM integration.

This means old CD-ROM copies of Grim Fandango, The Longest Journey, and Myst 3: Exile are playable. ScummVM 2.5.0 also adds a bunch of lesser known titles and engines -- head here for the full list.

"We wish you great adventuring, happy puzzle-solving and exciting journeys to RPG worlds, and hope to see you around in the coming years", writes the official ScummVM site. And with that GOG.com is running a special promo discounting a number of ScummVM titles. From Blade Runner to Myst to King's Quest and Sam & Max Hit the Road, there's a whole bunch of point-and-click goodness on sale.