Replaced some of the sprites with actual 3D objects: flowers, trees, rocks, etc
The replaced objects are placed in same location as original to keep spirit of game intact.
Trees move in the wind
On the fly tessellation of land geometry (using Phong tessellation algorithm)
Water is shader based with proper reflections
Sky is shader based and animated
Some of the objects rotate when inspected
Trees, leaves and grass sway in the wind
Added shadows (shadow maps)
Added screen space effects like depth of field
Added capability for modding (for example: new quests can be added or add stats and display them in game)
Added a debug/cheat window to change many aspects of the game while playing.
The following are slightly different than the original game
strafing is faster
aiming is more "first person shooter" like, as in you have to have look at the enemy you shooting at to aim. Arrows don't autoaim