... paths Helicopter or Aircar: flight travel Car: with better speed control Armored vehicle - Tank or APC with Mounted weapons Patrol and Transport boats Excavator- in order to expand lakes or make moats Just some Ideas

... setting up interplanetary factories or even factories in space. The game needs bridges that you can make individual segments and intersections. Boats should be added if more biomes like an ocean type is added, I think having research that once researched, you can explore underwater, enabling ...

Eventually there should be bridges to go over water, large masses of water which means boats can come in handy and also depleting water! You put a pump down and the water slowly drains around it eventually drying up leaving more land to walk on(maybe some underwater items)