MMOG

Runescape
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Hugely successful browser-based MMORPG, where all the usual online tropes are available for free: quests, abilities, and, ooh, grinding.

Maple Story
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This 2D platform MMO has about 30 trillion players, and is more cute than 15 bunnies in your sock drawer.

Puzzle Pirates
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A puzzle game and MMOG, where your piracy skills are based on your puzzle abilities, e.g., fixing your sails with your chess skills.

Dungeon Runners
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NCsoft’s sense of humor in a game. This free (though you can pay for stuff) MMO is one whole elongated spoof of WoW, and is actually very funny.

Second Life
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A meeting place for perverts, artists, advertising people, and presidential candidates. Join, create a character, and wander.

Bang Howdy
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Wicky, wicky, wah what on Earth? It’s a tactical MMO set in the Wild West, with gold rushing, card playing, and of course, shooting.

jDoom
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Doom, but more so. Made prettier and smoother, but still the nasty shotgun-blasting, demon-fighting game it always was.


Above: You won’t be able to play this prettier version unless you’ve got the original

Legends
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Inspired by Tribes 2, Legends is an online shooter with the added bonus of jetpacks.

Marathon
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Halo’s progenitor, the game that countless Mac users will tell you is better than its successor.

Hidden & Dangerous Deluxe
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Classic squad-based WWII stealth shooter, giving you free-roaming hunt-the-Nazis fun.

Dice Wars
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A game of world domination – essentially, Risk played with six-sided dice.

Desktop Tower Defence
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A brilliant reinvention of strategy gaming. Defend your desk from wave upon wave of abstract monsters by putting up turrets.

Protector
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Desktop Tower Defence played with magicians and monks.

Storm Winds 1.5
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Tower Defence crossed with a shooter in a tech-punk world, battling airships and weird flying beasts.

GLFrontier
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One man and his ship against the universe. Be a pirate, a trader, a mercenary…

BSG: Beyond the Red Line
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Frakking-good fan game based on the new Battlestar Galactica, where you’re a Viper pilot pew-pewing evil Cylon jerks.

Ur-Quan Masters
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Huge space adventure where you’re the captain of a ship exploring a galaxy and hunting a nameless foe.

Parallel Universe
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A fan-update of Wing Commander: Privateer, rebalanced with new ships, missions, and bug fixes.

Noctis
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Open-ended space exploration game where you get to name the planets you discover.

FlightGear
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Open-source flight simulator with 20,000 airports and an accurate representation of Earth to fly over.

Orbiter
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Hardcore space-flight sim enables you to relive all the greatest moments of the UK space program.

Flying Model Simulator
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Lets you control remote-control planes, in case you’re fearful of crashing your toy.

Twilight Heroes
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Meticulously constructed browser-based text MMO in which you play a hero fighting crime in a grim city. Ingenious, funny, and advertising-free.

PMOG
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Fight friends and strangers by doing your day-to-day web browsing. Any task could net you points, from writing email to reading the news.

The Crowd
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You affect group behavior by gifting individuals with emotions.

Big Vine
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Incredible tech demo where you try to grow a pulsating silhouette tree. It’s amazing.

Cytoplasm
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Silent, slightly disturbing game in which you take control of a cell and battle malignancy while collecting food.

I Am Jesus
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Projectile combat game where you play Jesus fighting off enemies who throw spears or sandals.

Dino Run
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A meteorite hits Earth and you, a velociraptor, must run to escape the devastation.

Kylat
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Wacky game based around undersea whacking. Solve submarine squabbling.

Dive
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Can you get to the bottom?

Basho Kioku
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A simple memory game. Click on a square to complete the level, but you fail if it’s a square you’ve ever clicked before.

Cursor*10
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Time-bending puzzle game where you must cooperate with versions of your past self in order to advance.

Slidon
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Simple pattern-matching game where you slide blocks around in the correct order to make them touch and vanish.

Hoshi Saga 2
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Discover the star through combinations of clicking and problem solving in 36 levels of puzzles.

Plupon
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Numbers slowly rain; you have to add them to make exactly 10 before they fall from the screen.