If you have played and liked the open source Worms clone Wormux, then you should definitely try Hedgewars. It's a turn-based strategy game featuring teams of hedgehogs battling on destructible terrain. Hedgewars includes lots of fun weapons, great sound effects, can generate random maps or play pre-made ones, and includes a good computer AI as well as online play.

ManiaDrive describes itself as “an arcade car game on acrobatic tracks, with a quick and nervous gameplay (tracks almost never exceed one minute)” and also as a clone of Trackmania.

A first-person shooter Star Wars video game, released in the US on 1 March 2005. It was developed and published by LucasArts for the Microsoft Windows and Xbox platforms.

The game is set during the events of the Clone Wars that started at the climax of the movie Star Wars Episode II: Attack of the Clones. In the game, the player is expected to take command of a Clone commando team, made up of elite Clone troopers.

"The MS/Novell deal specifically excludes patent protection for "clone products." In the agreement, a clone product is broadly defined as "a product (or major component thereof) of a Party that has the same or substantially the same features and functionality as a then-existing product (or major component thereof) of the other Party ...

Wormux is an open source clone of the classic game Worms. It's a multiplayer turn-based game in which teams of open source mascots battle on a deformable landscape with a variety of weapons. Wormux 0.8 was recently released, bringing networked multiplayer, new maps, weapons, bugfixes, and more.

After more than 6 years of development, the OpenTTD developers have released version 1.0 of their open source Transport Tycoon Deluxe clone, adding a number of improvements on the original to the urban planning and simulation game

The Novell-backed Moonlight project announced a beta of Moonlight 2.0, an open source Linux/Unix clone of Microsoft's Silverlight media framework. Moonlight 2.0 offers improved media streaming enabling media codecs like Ogg Vorbis, Ogg Theora, and BBC Dirac, via a runtime for its sister project, .NET clone Mono.

If you’ve ever wanted to completely clone your Ubuntu install, with all of the tweaks, files you’ve downloaded and changes you’ve made to it, there’s a fairly simple way to do this. This is great if you want a complete backup, or if you’re looking to move your system to a newer (read: bigger, faster, stronger) hard drive or even just to clone your install to other machines with the same hardware.

Jacob’s recent post on Lemmings clone Pingus reminded me of a similar game (similar in the penguin content anyway) which is also great fun to play and can give you that nostalgic feeling. It is basically a Super Mario clone, called SuperTux. Unsurprisingly, instead of the moustached man, you control everyone’s favourite operating system mascot, Tux.