G123

Goblin Slayer: Endless Hunting is a web browser RPG based on the dark fantasy light novel series Goblin Slayer. Team up to defeat a variety of monsters in this easy-to-play auto-battler.

Goblin Slayer: Endless Hunting

Promotional Video

CVR90

Clue style game inspired by the anime Kaguya-sama Love is War.

Clue Kaguya-sama: Love is War

COLOPL, Inc.

Anya's Dodgeball Challenge is a promotional web game based on Spy × Family.

Anya's Dodgeball Challenge

Gameplay Video

Whomor

A mini farming simulator game of "My Next Life as a Villainess! All Routes Lead to Doom!". Let's make our own Katarina farm with cute pixel characters!

Katarina's Farm

Bandai Namco Online

Bandai Namco Entertainment

Naruto x Boruto: Ninja Tribes is based on the popular Naruto and Boruto anime series and brings together fan-favorite characters spanning multiple generations of both franchises for one-tap team-based battles.

A turn-based RPG being developed by Bandai Namco, now planned for release on the Enza platform in Japan which includes PC and Mobile web browsers as well as standalone apps for iOS and Android.

Original planned for release in 2018 as Naruto x Boruto: Borutical Generations, the game was delayed and eventually re-announced under a new title, Project: Tri, on May 15th 2019.

Naruto x Boruto: Ninja Tribes

(Archive) Bandai Namco Entertainment Inc.

A Konjiki No Gash Bell (Zatch Bell) mobile card battle game.

Konjiki no Gash Bell!! Golden Memories

Silverware Games, Inc.

Firestarter

Naruto-Arena (2006-2018) is an online multiplayer strategy game, where you play as 153 characters in total. The game is no longer available.

Naruto Arena

Escape from the Room with my Kōhai Game is an escape game based on the Don't Toy With Me, Miss Nagatoro series. The game was made by the original author Nanashi in RPG Maker and released on Pixiv, just one year prior to the mangas official release date.
The game was also translated into English on July 21, 2018.

Escape from the Room with my Kouhai

NHN PlayArt

Sega

Valkyria Chronicles D, also known as 戦場のヴァルキュリアドユーエル, or Senjou no Valkyria DUEL, is a mobile game released only in Japan. It was a free browser-based/iOS game, with radically different gameplay, focusing more on character management of war troops similar to sports team management simulations. It was released on July 26, 2012 and shut down on April 22, 2015.

Senjo no Valkyria Duel

4Kids Entertainment

Kirby Star Ride is a Flash game made by 4Kids as a promotion for Kirby: Right Back at Ya!. The game was only up for 1 year before being delisted from the website. The game is currently lost, with 0 information about the game surviving online apart from it's existence.

Kirby Star Ride

Tribal Nova

Frima Studio

Spider Riders: Battle for Arachna was a web browser RPG based on the anime series Spider Riders, itself an adaptation of a series of novels.

The game's Combat consisted of players rolling dice and using a deck of cards they assembled in turn-based battles. It featured a customizable avatar character and spider, 15 single-player missions, online play, and a Guild system, where players would align with one of four mentors to compete and amass the most points during recurring events.

Spider Riders: Battle for Arachna

Sonic Slider is an online Flash game published on the 4Kids TV website by 4Kids Entertainment in January 2005 to promote the then-airing anime series, Sonic X. It is a Sonic-themed sliding puzzle.

Sonic Slider

Sonic X Snake is an online Flash game published on the 4Kids TV website by 4Kids Entertainment in January 2005 to promote the then-airing anime series, Sonic X. It is a simple Sonic X-themed game of Snake.

Sonic X Snake

This is a flash game that used to be on the Cartoon Network website. It played similar to rock, paper scissors.

Based on Anime Browser Games