A Bear's Night Out was nominated for an XYZZY award for Best Game in its second year. You play as a teddy bear exploring the house of your owner.
This is a classic 90's game. Tight puzzles, jokey references to other games, a real sense of atmosphere, many unexaminable objects. If you enjoyed Plotkin's or Nelson's early games, you will enjoy this game.
By the game's own count, it has 32 references to previous games, including letting you (Spoiler - click to show)play Curses!, Dungeon, and Adventureland.