Oberin

Oberin

"Oberin is an online fantasy role-playing game and virtual community, available exclusively for Macintosh. Oberin takes place in a persistent, ever evolving world -- your character may come and go, but the world continuously runs."

Free to play indefinitely.

Play Oberin now!
OGame

OGame

"You start out with just one undeveloped world and turn that into a mighty empire able to defend your hard earned colonies. Create an economic and military infrastructure to support your quest for the next greatest technological achievements. Wage war against other empires as you struggle with other players to gain the materials."

Free, with option to pay for additional features.

Play OGame now!
Ogre Island

Ogre Island

"Do you have what it takes to stand against fierce monsters? To explore winding, trap filled dungeons? To journey from the mountains to the sea and through the vast wastelands?"

Free, with option to pay for additional features.

Play Ogre Island now!
Ondarun 2

Ondarun 2

Manage a racing team in international tournament competitions. Choose from 950 cars and win some of the 32 tournament cups. This game has minimal graphics but is a fun strategy challenge.

Free, with option to pay for additional features.

Play Ondarun 2 now!
One Piece

One Piece

One Piece is a browser-based 2.5D MMORPG, based on the popular anime series.

Players start with one of the three classes—Sniper, Swordsman and ‘Devil Fruit User’—which cannot be customized. The story unfolds in English so broken it’s funny and tentatively weaves together episodes from the show. The combat takes place in instances and has tower defense elements—players safeguard a flag or try to destroy that of their enemy in PvP. Fights are player-controlled, though if they don’t fight the AI will do so instead. Those who watch One Piece will be delighted by the presentation—visuals and sound are top-notch here—but positively appalled by the lack of a coherent story. Some glitches are present, too, like non-responsive NPCs and UI problems. The game is also pretty greedy from the get go, showering players with countless offers of questionable value.

Even though stunning graphically, with fun music and fights that are above the usual caliber of such games, One Piece keeps begging for money all the time, but doesn’t have much, in terms of story and immersion, to offer for it.

See Videos

Free to play indefinitely.

Play One Piece now!
One Piece 2

One Piece 2

Follow the exploits of Luffy and the Straw Hat Pirates in Joygames's One Piece Online 2: Pirate King, their second browser game featuring the popular Japanese manga. Explore the treacherous Grand Line with your very own pirate crew, in search of fame, fortune, and the legendary One Piece.

At its core, One Piece Online 2 is a team-building, character collecting browser game with squad combat. It also looks and plays like every other Chinese-developed browser game out there — complete with a cluttered interface, auto-pathing, endless quests and an overwhelming array of bells and whistles. A slowly regenerating stamina bar limits your activities per session, which can be a good or bad thing depending on the player's gaming habits. Combat is turn-based, with a focus on strategic placement of party members and team synergy. Certain skills can be used during battle, so learning when to use them is essential to victory as well. As with most browser games of this caliber, PvP is a central part of the gameplay, so players are more likely to progress towards that endgame. Be prepared to spend cash if you want to participate at the higher tiers of the PvP ladder, though.

Overall, One Piece 2: Pirate King is a mostly generic, "same old" browser game painted in the hue of the popular franchise. Fans of the series might find appeal in collecting their favorite characters, forming their "dream" pirate crews, and defeating other players with them. Non-fans, however, might want to steer clear of these waters.

See Videos

Free, with option to pay for additional features.

Play One Piece 2 now!
Online Boxing

Online Boxing

"Welcome to Online Boxing, the first Multiplayer Internet based Boxing Game."

Free to play indefinitely.

Play Online Boxing now!
Onverse

Onverse

3D virtual world game full of friends and fun. Get a free home and explore using your tools for shopping points. Hit the dance clubs or play games. Decorate your avatar and your home.

Free, with option to pay for additional features.

Play Onverse now!
Outwar

Outwar

An urban adventure RPG. Join a crew and defeat your enemies to gain power in Diamond City.

Free to play indefinitely.

Play Outwar now!
Overkings

Overkings

OverKings is a fantasy MMORPG, played in the browser. The game is set in a mythological world, and its lore is fine, actually, revolving around a world in chaos after a struggle between two great heroes, caused by the vicious hero Nameless. There are eight character classes (warriors, healers, wizards – the usual). There are plenty of PvP and PvE opportunities as well as quests in OverKings, but most of the quests are along the lines of the usual “kill this” and “bring that”. OverKings is instance-based, and you have to explore the game world to find mobs to fight. Hint: you might prefer to avoid ‘red zones’ without a party, as other players can loot up to 30% of your equipment if you get killed.

See Videos

Free, with option to pay for additional features.

Play Overkings now!
Oz World

Oz World

Oz World is a virtual social scene where you level up and earn gold to buy stuff. You can make friends, buy a house, fish, and more. Several different towns to visit.

Free, with option to pay for additional features.

Play Oz World now!

Find the right online game for you with this chart!