If any reader of any website is likely to have World of Goo, you have to suspect RPS readers are. We did the first review! We never shut up about it! However if for some reason you don't, Steam are selling it for 75% off this weekend. That's just over four quid. Go get it.
If you're feeling even four-quid skint, also over at Steam, Unreal Tournament 3 Black is free to play all weekend - plus 40% off the full game (Making it just over eight quid). It includes the Titan Pack, which is a hefty newly released expansion for the full game which includes lots of stuff which I'll lob beneath the cut. As it really is a load of stuff, including the word "behemoth"....
* 16 environments — four Warfare, three vCTF, six Deathmatch, and three CTF maps — that are new to the PC and PS3 versions
* Three bonus pack maps, CTF-Face, CTF-Searchlight and DM-Morbias
* The namesake Titan mutator, which lets players overwhelm opponents as a 15 foot tall titan, or crush them as a 30 foot tall Behemoth
* Greed and Betrayal, two gametypes that breed new-found fervor throughout the competitive UT3 arena
* Two powerful weapons, the Stinger Turret and Eradicator Cannon artillery
* Two valuable deployables, the X-Ray Field and Link Station
* The Slow Field power-up, a portable version of the Slow Field deployable
* Stealthbender, a new vehicle that carries two spidermine trap deployables, one EMP mine, and one each of the new Link Station and X-Ray Field deployables
* Two new characters, Nova and Kana
* 57 awards attainable as Steam Achievements
* Significant AI enhancements, especially in vehicle gametypes; networking performance upgrades; greatly improved menu flow and UI usability; better mod support
* Client-side demo recording, highly improved Server Browser, a new maplist system, plus mid-game mutator and gametype voting functionality for PC
See, told you. You can get it from here.