Nutaku

Nutaku.com is a website that offers a wide variety of online games, including role-playing games, tower defense games, and dating simulators. The site's team of experts specializes in selecting the best games from around the world, and also offers exclusive access to popular Japanese games in English. In short, Nutaku.com is a one-stop-shop for the best free online games.
However, there are some controversies surrounding the games that Nutaku releases, such as changes to dialogue, censorship, and being quite greedy. In addition, last year Nutaku killed off many popular games and also ended games very quickly, such as Alice X which was announced and closed after less than 3 months of being online.
Now, the majority of Nutaku games are Western games rather than DMM, and most of them are very cheap. There are now other options such as Johren and EroLabs, but Johren does not seem to be bringing in many high-quality Gacha games (although they do offer visual novels) and EroLabs only has 4 games at the moment, although one of them, TenkafuMa!, is well-made and unexpectedly customer-friendly.
Overall, Nutaku.com offers a wide variety of online games, but there are some downsides to consider, such as controversies surrounding the games, the killing off of popular games, and the majority of games now being cheap and Western. It may be worth considering other options such as Johren and EroLabs.