4089 takes many of the things you loved from 3079 & 3089, like character customization via stat points, grappling hooks, special powers, building options, futuristic settings, random enemies, weapons, and environments. Then, it presents itself in a much more focused game that gets you into the action easier and faster. 4089 takes more influence from the rogue like genre & has more emphasis on stealthy elements than ever before.
You'll be able to battle & sneak through a procedurally designed ship. Hack cameras & locked doors. Build walls for cover. Break down secret walls to discover new paths. Choose whether you are playing for the full adventure, or just a quick challenge. Edit or create your own rooms, enemies, weapons, textures, models & sounds, then share them with the world!
4089: Ghost Within has 3 game modes, "Normal" mode (skill points are lost at death), "Limited Lives" mode (no skill points are lost, but you only have 4 lives) & "Permadeath" mode (you only have 1 life).