I will develop clone of Dino T-Rex game using Libgdx.
Have a look Similar Game
https://play.google.com/store/apps/details?id=com.mak.game.runsanta
OR
https://play.google.com/store/apps/details?id=com.mak.game.dropgift
The feature we can work on:
1. Simple gaming.
2. 2D physics engine such as BOX2d
3. Leaderboard
4. Achievements
5. Ad integration.
Please have a look packages.
Please ping me for discussion on your requirement and modifications.
Final Cost will estimate after discussion.
Regards,
Mohd Arshi Khan