There are six alternate endings: rise to surface (good and evil), abandoned (good and evil), and the standard ending (good and evil).

Good endings Rescue all Little Sisters that you dealt with and spare Grace Holloway, Stanley Poole, or Gilbert Alexander.

Good endings Rescue all Little Sisters That you dealt with and kill Grace Holloway, Stanley Poole, and Gilbert Alexander.

Standard endings Rescue at least one Little Sister and harvest at least one Little Sister. Choose to die at the end and spare Grace Holloway, Stanley Poole, and Gilbert Alexander.

Standard endings Rescue at least one Little Sister and harvest at least one Little Sister. Choose to die at the end and kill Grace Holloway, Stanley Poole, or Gilbert Alexander.

Bad endings Rescue at least one Little Sister and harvest at least one Little Sister. Choose to live at the end and spare Grace Holloway, Stanley Poole, and Gilbert Alexander. Alternately, harvest all Little Sisters that you dealt with and spare Grace Holloway, Stanley Poole, and Gilbert Alexander.

Bad endings Rescue at least one Little Sister and harvest at least one Little Sister. Choose to live at the end and kill Grace Holloway, Stanley Poole, or Gilbert Alexander. Alternately, harvest all Little Sisters that you dealt with and kill Grace Holloway, Stanley Poole, or Gilbert Alexander.