This is how you do 2D, side-scrolling, player-affordant stealth.

Procedural dungeon generation, zelda-style.

Simple but deep and compelling core gameplay.

Crazy but discoverable 90s style adventure gaming, with a sense of humour.

This is how you do readable stealth mechanics in a first person game.

Fiddly platforming mechanics done right.

Branching storylines. Simple, thinky core gameplay. Inspires emotional and moral decisionmaking.

Incredibly deep strategy/RPG hero progression. http://www.celestialheavens.com/viewpage.php?id=520

Individual character relationships (rather than good/evil morality systems). Dialogue as core gameplay.

Best co-operative movement and puzzle solving.