Steam is probably the best example of that. It launched back in 2003 and has only grown since. What keeps it going is how deeply it is integrated into PC gaming culture. But when people talk about which has popular gaming app genuinely stood the test of time, Steam always comes up first. It handles game purchases, updates, cloud saves, friend lists, and community forums all in one place. Newer platforms like Epic Games Store have tried to compete but Steam's library size and user base make it nearly impossible to displace. Over 130 million active users says a lot about how sticky it has stayed.