Summer Games Done Quick is a charity speedrunning event, now live

Shaun mentioned this earlier as part of Humble's SGDQ 2014 Bundle , but the main event is also deserving of attention. Summer Games Done Quick is a speedrunning event, and the sunnier companion to January's AGDQ . Over the next week, the livestream marathon will be raising money for Doctors Without Borders.

You can find the full schedule here , adjusted to your time zone. While it's predominantly geared towards old console games, there are more than a few PC-specific blocks on the timetable. Tomorrow, around 8am BST, you can see System Shock 2, Psychonauts and Deus Ex: Human Revolution. At 7pm BST on June 28, we'll see Half-Life 1, Half-Life 2 and both Portals.

You can see the full livestream at the Speed Demos Archive Twitch page , or embedded below.

If you miss any runs, you can catch up on the Twitch archive . Here's Bioshock 2 falling down in under an hour and a half:

Phil has been writing for PC Gamer for nearly a decade, starting out as a freelance writer covering everything from free games to MMOs. He eventually joined full-time as a news writer, before moving to the magazine to review immersive sims, RPGs and Hitman games. Now he leads PC Gamer's UK team, but still sometimes finds the time to write about his ongoing obsessions with Destiny 2, GTA Online and Apex Legends. When he's not levelling up battle passes, he's checking out the latest tactics game or dipping back into Guild Wars 2. He's largely responsible for the whole Tub Geralt thing, but still isn't sorry.