Portal

China, Action, Steam Achievements, Partial Controller Support, Single-player, Includes level editor, Captions available, Includes Source SDK, Commentary available, Remote Play on Phone, Remote Play on Tablet, Remote Play Together, Tradable

Steam Gift

Gift

Link to the game in Steam

This is a restricted gift which can only be redeemed in these countries: China

Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.