I didn't see the topic yet, so here you can write the jokes worth mentioning you've faced so far (no need to google for all of them, thanks).

I can't believe I fell for this:

The local TV sports program just told that since World Icehockey Championships are this year a joint venture between Finland and Sweden, due to some regulations and loopholes in rules where they mention only one team for the organizing country, Finland and Sweden have to play as one team, ie. there will be a joint Finnish-Swedish team in this year's world championships. Apparently they couldn't change the rules in time so that Finland and Sweden could have their own teams.

It was still unclear whether the team coach will be from Finland or Sweden, but they already had the players' shirt ready, where the Finnish flag had Swedish colours.

I was cursing for about 5 seconds, when it finally hit me "Oh yeah, April's fool...". Damn!

For ignorant ones: for many Finns it doesn't matter that much whether we'd win the championships, as long as we beat the Swedes (usually we don't). They are our dearest enemies.

^ hahahha. :D

http://eu.blizzard.com/en-gb/games/zergotchi//

there's the supply depot game aswell :)

You're still going to beat the crap out of us Canadians in hockey, that's for sure.

It's the same with American basketball, my friend. The Toronto Raptors always get creamed.I told my brother this morning that it was 2pm-of course, April fools.

Similar to another recent science fiction game, it includes "Multiple color coded and unfulfilling endings!"

(note: I have not played said other game, so my conclusion comes from various other third-parties who may or may not have played said game)

Zergling Teaches Typing, The Westfall Trail, and Strat Blaster with Edmund Duke also looks like fun games.

http://www.youtube.com/watch?v=ffmDz4pSaFE&feature=player_detailpage

This is the best one I've seen, and it's totally convincing and legit looking.

I'm so glad GOG behaved themselves. If they'd faked the release of System Shock 2 for free and had the actual download as something rubbish that could have been the ultimate trolling !

seems like it's gonna be a slow April fools day, maybe because it's a sunday and all, last year was way more active.

Used games on Steam:
http://steamunpowered.eu/steam-soon-to-introduce-used-game-sellin

New IndieGala bundle:
https://twitter.com/#!/indieroyale/status/186490017772871680

Mars Effect:
http://marseffect.net/

Google Chrome Multitask Mode:
http://www.google.com/intl/en/chrome/multitask.html

The Witcher: The Musical
http://www.mcvuk.com/news/read/the-witcher-the-musical-hits-london-s-west-end/093719

For me, Andy Carroll (Liverpool FC) vowed for not celebrate IF he scored against his old club, sounds like April's Fool joke. And look what he did just now... here at Malaysia, we don't celebrate any form of April's Fool. Maybe there are, but not in large scale, maybe a bit banter or joke between close friend because that's simply not our culture.

I went to a restaurant and replaced the toilet paper with non-rip toilet paper, like every single roll. I spent the next 3 hours ordering coffee and watching people walk in but never walk out, in about 15 minutes a line formed :D

Assassin's Creed for Kinect
http://www.youtube.com/watch?feature=player_embedded&v=7NufHsmITjM