This was made in the Unity Game Engine using C#.

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These videos helped me when creating this project

for the enemy spawning in WaveSpawner.cs

• How to make a Wave Spawner in Unity 5 - Part 1/2
• How to make a Wave Spawner in Unity 5 - Part 2/2

for the camera shake when firing in CameraShake.cs

• CAMERA SHAKE in Unity

for the action of firing in Shoot.cs

• Unity - Point and Shoot Tutorial

for enemies following the player in Enemy.cs

• Unity - Enemy Follows Player [Beginner Tutorial]