A tower denfense game, but you can only interact with the world by hitting things with the pinball Story: You want to steal resources on lava planet, but native monsters come in waves to stop you.
Ideas:
Tower Defense Part:
- pinball table background is lava texture (maybe with animation?)
- the enemies walk from top to bottom on a predefined path with concrete texture
- around the way are predefined places for towers
- Different tower types, which have much advantages when the right types are built near each other
Tower Types:
- slowdown tower: Slows enemies in radius down
- tesla tower: Damages every enemy in radius constantly
- machine gun tower: Damages one enemy in radius unit dead
Pinball Part:
- hitting a tower place fills bar, when bar is filled, tower upgrade is ready
- to upgrade a tower, special fields gets visible/hitable, hit one to select the tower type
- if more upgrades are ready, you can hit the special fields multiple times, the upgrades were build in queue
- every tower is an object with collision, if one gets hit, bar fills, when bar is filled, tower gets upgrade
- (random extra field, when hit, then temporary extra like second ball, bigger ball damage-/radius, etc.)
- If ball hits enemy, it is instant dead
- Hitting the road with the ball, causes a shockwave along the road, which damages the enemies on the road a little
Base Part:
- drill hole with drill, the monsters want to destroy
- every building can be replaced by hitting special field which is only visible when specific building is destroyed
- all towers and factories need power from power plant which only produces power if the drill is running
Base Buildings:
- Power Plant
- Damage Booster Building
Game goal:
- player win if every resource from drill hole is farmed
- monsters win if there is no of your buildings in base left
Beginning phase:
- Very easy enemy waves, because it must take long to build a new tower
- Only defending by hitting an enemy with the ball
Upgrade System:
- Hit foundation to fill progress bar, if full -> pinball menu tower selection (towers: gun, microwave, tesla, mortar)
- Hit towers to fill progress bar, if full -> pinball menu upgrade selection (possible upgrades: more sight range, damage, faster rotate speed, bigger damgage range)
- every action gives points, collect points to get on a higher level -> unlock more tower types and upgrades
Mobile:
- Extra: Gyroscope can control ball movement