There are so many great video games out there, and so little time to play them. HowLongToBeat is a community-based site that predicts how long you'll need to get through various video games to help you better plan which one to play next.
Once you navigate to the site and create an account, you can browse through a list of thousands of video games. Click the one you're interested in, and the site will tell you how long it should take you to complete the game if you're only interested in the main quest, if you want to complete the side objectives, and if you want to truly discover every nook and cranny the game has to offer. The times are all based on community members' reports, so popular games probably have more accurate data, but I couldn't find a game that wasn't at least listed.
For the curious among you, you can dive deeper into each game's page to find discussions and user reviews, see what platforms people are playing it on, and time yourself against the fastest-reported speedrun. Once you complete a game yourself, you can add your own time to the database to keep improving the service. If HowLongToBeat taught me anything, it's that I own far more games than I have time to play, but it at least helped me prioritise which ones I might get through next weekend.