Upcoming online game Gate has players create portals, here called "gates", to warp themselves to different areas in the game world. Hrm, that sounds familiar!
Portal, released in 2007 by U.S. developer Valve, has players solve puzzles by using the portal gun to open up teleports. Below is a screenshot from the game.
According to website 4Gamer.net, Gate is a first-person shooter. However, it actually appears to be a third-person shooter. Gate, unlike Portal, does offer a variety in playable characters and weapons, but still.
Details about when Gate goes online in South Korea are forthcoming. That is, if Valve doesn't stop that from happening first.