[4] Eternal Return features a mix of multiplayer online battle arena gameplay with survival game elements.

There are multiple playable characters with different skills and abilities, similar to multiplayer online battle arena games.

[2][1] The game's launch had the solos and duos game modes removed due to not having sufficient player base to fill multiple queues, Only Squads [Teams of 3] and Cobalt Protocol [4v4] modes were enabled.

[7] In 2021, the developer partnered with Kakao Games to publish Eternal Return in Korea.

[8][9] In 2021, a music video featuring K-pop group aespa was created for the domestic launch of the Kakao Games client.