Category: 2D

Realm of the Mad God

Realm of the Mad God is a free-to-play 2D fantasy MMORPG that mixes chunky retro pixel art with top-down bullet hell shooting. You jump in with other players to fight through swarms of enemies and eventually challenge Oryx, the Mad God, in a world where permadeath is always on the table, and a single mistake can wipe out a character and their gear.

Publisher: Kabam
Playerbase: High
Type: Fantasy MMORPG
Release Date: June 20, 2011
Pros: +Distinctive hardcore hook with permadeath. +Quick, skill-driven combat pace. +Retro pixel presentation with personality.
Cons: -No PvP focus. -Monetization can feel pay-to-win adjacent. -Steep early learning curve.

Grand Chase

Grand Chase is a 2D, anime-styled side-scrolling action MMORPG built around quick, arcade-like combat and short instanced missions. Instead of a huge open world, it focuses on party runs and competitive matches where up to six players can clash, juggle enemies, and chain together flashy combos. With a sizable roster of characters and a mix of PvE and PvP modes, it aims to feel closer to a brawler than a traditional hotbar MMO.

Publisher: KOG Games
Playerbase: Medium
Type: 2D MMO
Release Date: March 8, 2008
Relaunch Date: July 28, 2021
Pros: +A rare mashup of MMO structure with beat-em-up action. +Large cast with distinct playstyles. +Strong anime presentation. +Responsive, combo-driven fights.
Cons: -Menus and interface can feel dated. -Some abilities are locked behind the cash shop. -Grouping for dungeons and PvP can be awkward.

Red Stone Online

Red Stone Online is a long-running 2D fantasy MMORPG built around top-down, isometric action in the vein of classic dungeon crawlers. Its biggest hook is a transformation mechanic that effectively gives each character access to two class identities, letting you swap styles without rerolling.

Publisher: L&K Logic
Playerbase: Low
Type: MMORPG
Release Date: May, 2003 (KR)
Pros: +Large class roster with distinct roles. +Standout transformation feature. +Extremely high level cap (1000+).
Cons: -Aging presentation and tech. -Progression can feel very grind-focused. -Engine issues on newer Windows versions (lag on Windows 8+)

Nexus TK

Nexus: The Kingdom of the Winds (often shortened to Nexus TK) is a long-running 2D fantasy MMORPG rooted in Korean mythology. It is among the earliest online RPGs still operating today, and it lets new players experience the early game without paying by offering free play up to Level 49.

Publisher: Kru Interactive
Playerbase: Low
Type: MMORPG
Release Date: 1996 (Korea); 1998 (NA)
PvP: Duels / Events
Pros: +Old-school RPG flavor. +Supportive, tight-knit community. +Runs on very modest hardware. +Standout clan, council, and roleplay systems.
Cons: -Aged presentation. -Outdated interface and pacing. -Most of the game sits behind a subscription. -Not beginner-friendly.

Sparta: War of Empires

Sparta: War of Empires (often shortened to SWoE) is a 2D, browser-based strategy MMO set in Ancient Greece, where you manage a modest Spartan city-state and try to grow it into a regional power. Between base building, army management, and constant pressure from other players, the game leans heavily into competitive play, with King Leonidas acting as your guide through the early steps.

Publisher: Plarium
Playerbase: Medium
Type: Browser Strategy MMO
Release Date: March 13, 2014 (International)
Pros: +Strong presentation for a browser title. +Premium currency is obtainable through questing.
Cons: -Busy, sometimes confusing UI. -Noticeable pay-to-win pressure.

Forge of Empires

Forge of Empires is a 2D, browser-first strategy MMO from InnoGames, best known for long-running titles like Tribal Wars. The core loop is city-building and careful resource management, with your settlement evolving across historical eras, from a rough Stone Age village into a much larger, more complex modern city. You can play it in a web browser, and it also has dedicated versions on iOS and Android.

Publisher: InnoGames
Playerbase: Medium
Type: Browser Strategy MMO
Release Date: Apr 17, 2012 (International)
Pros: +Meaty solo campaign with steady objectives. +Satisfying era-to-era growth from Bronze into industry. +Lots of systems to optimize and upgrade.
Cons: -PvP is present but not the main focus. -Progression can feel deliberately slow.

Conquer Online

Conquer Online is a classic 2D martial arts action MMORPG set in ancient China, built around competitive play. It leans heavily into PvP with duels, clan conflicts, and tournament-style events that encourage players to test their builds, their reflexes, and their willingness to take risks in the open world.

Publisher: TQ Digital
Playerbase: High
Type: MMORPG
Release Date: Jan 17, 2004 (NA/INTL)
PvP: Duels / Open World / Clan Wars / PvP Tournaments
Pros: +Flexible rebirth progression. +Lots of PvP formats to choose from. +Distinct class roster with different playstyles.
Cons: -PvE difficulty is generally low. -Botting remains a common issue. -Cash shop power can heavily influence outcomes.

MapleStory

MapleStory is a long-running free-to-play MMORPG that plays out in a charming 2D, side-scrolling world. Its bright, cartoon-like presentation hides a surprisingly deep game built around leveling, bossing, collecting, and experimenting with an enormous roster of classes, which is a big reason it has stayed relevant for so many years.

Publisher: Nexon
Playerbase: High
Type: MMORPG
Release Date: May 11, 2005 (NA)
PvP: Arenas
Pros: +A massive class roster (40+). +Big, varied world to explore. +Combat loop is genuinely enjoyable. +Questing content is extensive. +Memorable platforming-style stages. +Frequent seasonal events. +Storylines that stay engaging.
Cons: -Class balance can feel uneven. -Looting is awkward (manual pickup feels painfully slow). -Performance and client stability problems.

Dungeon Fighter Online

Dungeon Fighter Online is a 2D, side-scrolling beat em up MMORPG that blends arcade-style brawling with long-term character progression and loot hunting.

Publisher: Neople
Playerbase: Medium
Type: MMORPG
Release Date: March 24, 2015 (Re-Release)
PvP: Arenas
Pros: +Wide roster of classes and subclasses. +Flashy, satisfying skill visuals. +A deep backlog of dungeons and activities.
Cons: -Old-school visuals are not for every taste. -Core loop can feel grindy and repetitive.

La Tale

La Tale is a charming 2D side-scrolling fantasy MMORPG that leans hard into colorful, anime-style presentation and classic grind-friendly progression. You begin by picking one of six starter classes, then branch into more specialized paths as you climb levels. Whether you are grouping up for wave-based PvE in the Coliseum or testing your builds in Arena battles and duels, La Tale focuses on simple, arcade-like combat paired with deep character growth.

Publisher: PapayaPlay
Playerbase: Low
Type: MMORPG
PvP: Arena / Duels
Release Date: September 18, 2008 (NA)
Pros: +Memorable music throughout. +Lots of class paths and skill options. +Season 2 update refreshed major systems. +Cash shop feels largely fair.
Cons: -Population is small and trending downward. -Movement and inputs can feel awkward. -Questing and leveling can be repetitive and slow.