With Simple Trajectories, you can add gravity-affected ballistics to your rigidbody projectiles in as little as 1 line of code. If you have an archer, grenadier, mortar, artillery, trebuchet or simply want your bullets to be affected by gravity, this is a great place to get you started.

You can calculate trajectories based on a certain starting angle or a specific initial velocity. There's also support for drawing the predicted path so you know where the projectile will end up. Useful for seeing where a thrown grenade will land for example.

You can check out the web demo below to see the functionality in action:
WebPlayer Demo