Isabelle is an independent 3D adventure game for Microsoft Windows, produced by the French company Belisa in 1997.
The player controls George, a young blind man who has to convince his village that More, a villain who has assumed power locally, is masterminding a wicked plot. George is assisted by Raymond, his younger brother, to thwart Isabelle, George's own fiancee (who finds More's tyranny seductive).
Many found the game to be bizarre and confusing, but colourful and innovative. Soon after the game's release, Isabelle won the Möbius prize in the categories of Critique and Fiction.