In Hold the Pit, you must defend a bomb site from the opposition.  You are tasked with 3 game modes: Static Practice, where you can perfect your aim on randomly changing targets that are stationary; Bomb Defense, where you must defend the bomb for 40 seconds until it detonates; and Endless Run, where you must remain in control of the bomb site for as long as possible.  Mouse sensitivity controls and instructions on how to play can be found in the settings menu. 

https://websturna.itch.io/hold-the-pit

Here’s a screenshot of the gameplay:)

Hope you guys enjoy

Source: itch.io