Paladins. I've spent like 400 hours in it and tbh it's all hand crafted to keep you addicted and keep grinding their bullshit battlepass.

Honorable mention: Team Fortress 2. Game is great but Valve has pretty much done nothing with it. Last major update was in late 2017 and since then the game has received minor updates that usually only add shit for people to throw money at. The game still has a bot and cheater problem due to aforementioned fuck all Valve has been doing. Feel free to play, but you better open your wallet if you even want to speak! Let that one sink in, the game is free to play but you need to pay! To! Communicate! In the fucking game! Why? Oh the aforementioned cheating/bot problem of course! The bots were spamming racial slurs and other shit so Valve in infinite wisdom made free to play players unable to communicate at all! And that didn't even do anything! The bots just had premium accounts! There are cheaters in the game with very valuable items and are not banned. After all that trash talk the game is still fun, 4000 hours well spent. It's just sad that it's being left to rot.