Yah, it's a selection of mods I believe together are incredibly powerful.
- Remain in Motion for moving blocks
- Project Red for wiring, micro blocks and switchable lights
- OpenComputers for well, computers (and lua)
- BuildCraft for generating the power needed by the computers (optional)
My unsubstantiated opinion is that as long as people don't try to beat Minecraft on it's own turf, the market is looking for lots of what Minecraft does badly, such as the survival part taking less than an hour to be done with and the AI is just awful (not that I'd do better) and so the player spends most of it's time inventing needs instead of reacting to needs. Also, not story driven, and then there's a thirst I believe for space stuff and so on. Also, there is still a great weakness in Minecraft linked to the copy pasting stuff between maps (or inside the same map) being impossible if you aren't the kind that uses only basic (uninteresting) blocks. This just stinks.
For me, the biggest reason Minecraft still dominates lies in it's mods... Captain Obvious to the rescue!
Eloraam is currently trying to beat Minecraft on it's own turf so maybe even that is doable.
Anyway, I'll gladly check up your game when you finish it ^^.