Additionally, some games use the beta functionality to allow you to stay on a specific game version.

Not all games will ever have a beta version available, and those that do may not always have it available. Alternatively, if you have a beta key to access a private beta, enter your code in the box labelled “Enter beta access code to unlock private betas”, then click “Check Code”. Here you can opt into open betas if there are any by selecting them from the drop-down menu. Switch to the “Betas” tab in the game’s properties window. In the Library view, right-click an installed game, then click “Properties”. To opt in to a game beta, open your game library, then right-click on the game you want to join the beta for, and click “Properties”. Beta is a further stage of development where the game is usually mostly complete it is generally the last stage of testing before a game or update to a game is released. Games in alpha are much more likely to be incomplete or have serious bugs or performance issues. Tip: An “alpha” is generally the earliest level of testing. Early Access, however, is completely different from the optional Steam game betas. Steam’s Early Access program is technically an open beta programme with some games even releasing in an alpha state.

How to mod a steam game