| New free MMOs in April 2011: | ||
 Battlefield: Play4Free International Release: Open Beta – April 4, 2011 Subgenre: FPS Publisher: Electronic Arts Developer: DICE/Easy Studios |
 Spiral Knights International Release: Live – April 4, 2011 Subgenre: Action RPG Publisher: SEGA Developer: Three Rings |
 Rise of the Immortals International Release: Closed Beta – April 5, 2011 Subgenre: RTS Publisher: Petroglyph Games Developer: Petroglyph Games |
 Divine Souls International Release: Live – April 5, 2011 Subgenre: Action RPG / Brawler Publisher: OutSpark Developer: GamePrix |
 C21 – Steel Battle Chronicles International Release: Closed Beta – April 7, 2011 Subgenre: TPS Publisher: CyberStep Developer: CyberStep |
 Mythos International Release: Open Beta – April 12, 2011 Subgenre: CRPG Publisher: Frogster Developer: HanbitSoft |
 World of Tanks International Release: Live – April 12, 2011 Subgenre: TPS Publisher: Wargamming.net Developer: Wargamming.net |
 Aika SEA Southeast Asia Release: Live – April 12, 2011 Subgenre: CRPG Publisher: AsiaSoft Developer: HanbitSoft |
 Metal Assault International Release: Open Beta – April 14, 2011 Subgenre: Run ‘N Gun Publisher: Aeria Games Developer: GNI & Sesi Soft |
 Global Agenda: Free Agent International Release: F2P Update – April 14, 2011 Subgenre: TPS Publisher: Hi-Rez Studios Developer: Hi-Rez Studios |
 Argo Online International Release: Live – April 21, 2011 Subgenre: CRPG Publisher: Alaplaya Developer: MGame |
 Allods Online North America Release: Live – April 26, 2011 Subgenre: CRPG Publisher: Gala-Net Developer: Mail.Ru |
 Elsword North America Release: Open Beta – April 27, 2011 Subgenre: Sidescrolling action RPG Publisher: Kill3rCombo Developer: KOG |
 Wakfu International Release: Open Beta – April 27, 2011 Subgenre: SRPG Publisher: Ankama Studio Developer: Ankama Studio |
 Prius Online North America Release: Closed Beta – April 28, 2011 Subgenre: CRPG Publisher: gPotato Developer: CJ Internet |
 Aerrevan International Release: Live – April 29, 2011 Subgenre: CRPG Publisher: CubeForce Media Developer: CubeForce Media |
 Three Kingdoms Brawler International Release: Closed Beta 2 – April 2011 Subgenre: Brawler Publisher: The9 Interactive Developer: The9 Interactive |