McDROID

PROS:

• Better than CoD and Journey combined
• Very original
• Gorgeous graphics
• Rocking music
• Vast aresenal of kick ass weapons
• Creative enermies.
• Addictive gameplay that leaves you a sense of accomplishment.
• High replayability due to persistence.
• The Returner made this game

CONCLUSION: Get it!

Unity3d

PROS

• Well lubed drag-and-drop asset pipeline.
• Runtime navmesh baking
• Component based.
• The API is not bad and the documentation is ok also.
• Well made sprite based GUI
• The Asset Store has some very good stuff in it.
• Supports almost every platform on earth.
• good performances

Conclusion: It is fun to use and create with.