Hotaru no Nikki - Hotaru no Nikki is an Adventure-based, Puzzle-Platform, and Single-player video developed by Nippon Ichi Games.
Machinarium - Machinarium is independent puzzle / adventure game by Amanita Design
WarriOrb - WarriOrb is a Side-scroll, Metroidvania, and Single-player Souls-like Platform video game developed by Not Yet and published by Maple Whispering Limited.
Unmechanical - Fun and atmospheric side-scrolling puzzle adventure.
Timespinner - Timespinner is a Platform, Single-player, and Multiplayer Metroidvania video game developed by Lunar Ray Games for Multiple Platforms.
Limbo - “Dark, disturbing, yet eerily beautiful, Limbo is a world that deserves to be explored.” Joystiq. “Limbo is as close to perfect at what it does as a game can get.” Destructoid. Buy LIMBO: Special Edition.