Best Free Open World Games for PC and Browser in 2023!

Eden Eternal
Eden Eternal is a free-to-play 3D anime-style MMORPG from the developers of Kitsu Saga and Grand Fantasia. In Eden Eternal, players will trek across a magical realm filled with vibrant races (Humans, Beast Men, Frog Men and other half-animal races) and prosperous villages.

Tower of Fantasy
Tower of Fantasy brings the MMORPG experience to PC and mobile with a F2P, splashy, anime-esque style.

Aero Tales Online
Aero Tales Online uses a more classic Anime MMORPG art style to hit those nostalgia buttons for early 2000s MMO players.

Noah’s Heart
Noah's Heart is an open-world action-adventure MMORPG game developed by Archosaur Games, the developers of Dragon Raja.

Chimeraland
Chimeraland is a free-to-play sandbox MMO that has so many character customization options that some of you may be in the creator for hours… no joke

Flyff Universe
Flyff Universe uses an updated graphics engine to merge some fan favorite features! Experience the Anime MMORPG anywhere through any browser.

Diablo Immortal
Diablo Immortal is an all-new massively multiplayer online action RPG and Blizzard’s long advertised mobile Diablo experience (that totally was not coming to PC) comes to PC complete with all the demon slaying and looting you could want.

Halo Infinite (Multiplayer)
Step into the boots of a fresh Spartan and fight for galactic supremacy in free-to-play Halo Infinite Multiplayer

Swords of Legends Online
Dive into a fantastic fantasy world inspired by Chinese mythology in free-to-play MMORPG Swords of Legends Online!

Phantasy Star Online 2 New Genesis
Defend the Planet Halpha against the threat of the DOLLS in F2P sci-fi MMORPG Phantasy Star Online 2: New Genesis! PSO2:NG is a remastered version of the original PSO2, with stunning new graphics and gameplay features.

Genshin Impact
Explore a bright and fantastical anime-styled world in miHoYo's free-to-play online RPG Genshin Impact. Assemble your crew of adventurers and shift between them on the fly, as you journey across the world of Teyvat and fight monsters, solve puzzles, and help the townsfolk.

Jade Goddess
Set out on an epic journey in a world inspired by Eastern mythology in 101xp's free-to-play browser MMORPG Jade Goddess. Choose one of four classes and recruit powerful allies in a number of different battle types to protect the people of the Jade Dynasty.

Phantasy Star Online 2
Phantasy Star Online 2 is a free to play 3D MMORPG published by SEGA. Based on the original Dreamcast and Gamecube series, Phantasy Star Online 2 offers players the chance to visit detailed worlds and fight hundreds of interesting enemies.

League of Angels - Heaven's Fury
Embark on an epic quest to save world in League of Angels - Heaven's Fury, the latest entry in the free-to-play browser-based MMORPG franchise. Play as a mighty Dragoon, the enigmatic Mage, or deadly Archer and recruit your team of angels from the sides of light and darkness to fight against demonic beasts and their vile masters in a gorgeously rendered fantasy world.

Inferna
Journey across the vast world of Pangeau and defend the kingdom of your choice in free-to-play MMORPG Inferna. Choose from four races and four character classes and learn the intricate history of the world as you engage in thrilling adventures and quests!

Fer.al
Become a creature of myth and play and explore a fantastic world in free-to-play social game Fer.al! Customize your creature with numerous body modifications, marking, and even clothing, and build your sanctuary to suit your personal style and go off on adventures with your friends!

CRSED: F.O.A.D.
The former Cuisine Royale has a new name, but the free-to-play battle royale action is just as crazy as before! CRSED: F.O.A.D.

Ylands
Get creative and build the world of your dreams in Ylands, a free game-builder from Bohemia Interactive.

Ultimate Pirates
Avast! Set sail and plunder the high seas in Ultimate Pirates, a web-based MMORPG from Gameforge and developer Moonmana.

Stay Out
Survive on the edge of civilization in Stay Out, a free-to-play post-apocalyptic MMORPG from Mobile Technologies LLC. Become a "stalker," exploring the vast and hostile Alienation Zone in search of artifacts, but tread carefully -- dangerous creatures lurk in the dark, and you'll need all your wits, and a quick trigger finger, to survive.

Legends of Aria
Choose your path and create your legacy in Legends of Aria a free-to-play sandbox MMORPG from Citadel Studios. Create your character exactly how you want it, choosing from over 30 skills, and put yourself to the test in a vast open world where danger lurks around every corner.

Dark Knight
Become a devil hunter and challenge the forces of evil in Dark Knight, a free-to-play browser MMOARPG from Fortune Game Ltd. Start off as a sorcerer or slayer and summon a goddess to fight by your side as you ascend to become the ultimate devil-fighting machine!

Dauntless
Gather your friends, forge your weapons, and hunt ferocious behemoths in Dauntless, the co-op multiplayer RPG from Phoenix Labs, a studio consisting of developers from some of the biggest MMORPG ever made. Set adrift in a lush fantasy world known as the Shattered Isles, "Slayers" must band together to contend with a harsh environment and even harsher enemies Each Slayer can choose his or her weapon and attack style, from lightning-fast sword attacks to powerful axe strikes.

Stein.world
Take part in an immersive multiplayer online fantasy world in Stein, a charming free-to-play social browser-based MMORPG from pg5-studio. Embark on hundreds of quests and take on challenging wave dungeons -- or just enjoy the social aspects of the game!

Ring of Elysium
Battle against the elements and other bloodthirsty players in Ring of Elysium, a free-to-play battle royale game from Tencent. Stranded in a remote mountainous region during a blizzard, it's up to you to survive long enough to be airlifted out -- but not before partaking of a little extreme sports action!

Will To Live
Will to Live is a free-to-play MMORPG-shooter developed and published by AlphaSoft LLC. Set in a post-apocalyptic wasteland, the game is an open-world shooter littered with radiation, mutants, and other survivors.

Z1 Battle Royale
Formerly known as H1Z1, Z1 Battle Royale was one of the first battle royale games on the market, and now it's come back to its roots and gone free-to-play! Scavenge and survive along with up to 150 other bloodthirsty competitors to come out on top.

Tale Of Toast
Adventure and risk await you in Tale of Toast, a free-to-play sandbox MMORPG with open-world PvP and a freeform play style that evokes old-school MMOs. Experience a seamless world, filled with a variety of biomes and settlements, as well as procedurally generated dungeons that will offer a new experience every time.

Dead Maze
Take on the zombie hordes in Dead Maze, a free-to-play 2-D massively multiplayer cooperative game set in a post-apocalyptic world. Players will have to work together to hunt and survive and to rebuild society.

Scions of Fate
Scions of Fate (Yulgang in Asia) is 3D Fantasy MMORPG very popular in Korea and china with more than 100 million fans. Game features include faction based PvP, guild system (House), and players run shops.

Closers
In Closers, a free-to-play fighting MMORPG, horrific creatures are springing from mysterious dimensional gates all around New Seoul, and it's up to you to stop them! Play as one of several psychic warriors, each with their own unique backstory and special abilities, and reclaim Korea!

Wild Terra Online
Make friends, make enemies, and survive the elements in Wild Terra Online, a free-to-play survival MMORPG from Juvty Worlds Ltd. With over 100 buildings to choose from, you can build your settlement up from scratch and defend it from all comers in skill-based combat, or just engage in crafting and the economical aspects of the game.
FAQ
Frequently Asked Questions
What does Open World Game mean?
An open world game is one that sets aside the typical "beat the level and go on to the next" structure of video games. Instead, an open world game allows the player the freedom to explore a virtual world the way they want to without limits. While this term often gets presented as "do anything you want", it would be better to think of an open world game as allowing you to tackle the game's objectives in any order you want and through whatever method you want.
Open world games typically do not have loading screens in between areas and usually let the player roam wherever they desire without "invisible walls" or other gating mechanics barring the player's passage to certain areas.
In open world games you can often travel from one side of the map to the other and only be constrained by the actual geography of the world.
What is the most open world game?
The "most" open world game is going to differ based on what you are looking for when you say, "most open world." If you are strictly talking about the size of the open world, then something like "No Man's Sky" (not a F2P game) could probably be considered one of the most open world games. EVE Online (which does offer a limited free access point) would also fit in this definition as both games offer galaxies of “open world” to explore.
If by the "most" open world you mean the most freedom to go wherever you want to go, then perhaps games like Minecraft or Rust are the options you are looking for in your open world experience.
What is the best open-world game in 2023?
There aren't a ton of truly open world games in the free-to-play MMO game space, but games like EVE Online, Albion Online, and Planetside 2 offer some type of open world component to their gameplay.
Often you may see games advertised as open world (like Tower of Fantasy or Genshin Impact) and to a certain extent they are, but sometimes level gating is in use to keep players out of areas where the content may be harder than the player’s character level. You'll also often see games in the free-to-play genre referred to as "sandbox" and this usually means the game has some type of "do whatever you want" component like open world games.