Select Game Category
- 3D browser MMORPG (31)
- Adventure browser games (17)
- Economy browser games (14)
- Empire-building browser games (14)
- Fantasy browser games (18)
- Fighting browser games (401)
- Idle Games (14)
- IO Games (15)
- Manager-type browser games (11)
- Medieval browser games (13)
- Mobsters and Mafia browser games (280)
- Multiplayer browser games (73)
- Persistent Browser-based (PBBG) (38)
- Player vs Player (PvP) browser games (37)
- Racing browser games (42)
- Role Playing (RPG) browser games (45)
- Sci-Fi browser games (127)
- Simulation browser games (193)
- Sport browser games (149)
- Strategy browser games (330)
- Text-based browser games (71)
- Turn-based browser games (18)
- Vampire browser games (24)
Sci-Fi browser games
AgeOfSpace
AgeOfSpace is a free strategy multiplayer browser game set in science fiction universe. The main aim is to expand to be able to dominate other galaxies. Make sure to build buildings, ships, defenses and new technologies. Allies are important and it's advisable to contact nearby players and alliances. Keep in mind that all research is essential to the development of your empire. Farming is an action where a player raids other players with weak defenses/fleets and a lot of resources. Try to avoid farming by having as little excess resources as possible. Build defenses, complete missions and explore the galaxy.
(14 votes, average: 4.21 out of 5)
O-WN
O-WN is a multiplayer strategy browser game with sci-fi fantasy universe and space adventures. Humanity abandoned planet earth and your main task is to create a new home for humanity. Explore the Solar system, choose a planet and build your own colony. As soon as you have occupied the planet, you can construct buildings, research new technologies and grow your colony. Additional features are gathering resources, creating a fleet, fighting your enemies and expanding your empire to other planets. You should also become a member of an alliance to team up with your friends, protect yourself and create complex strategies.
(13 votes, average: 5.0 out of 5)
Mech Quest
Mech Quest offers you an opportunity to have adventures in a fantasy world. The most common features are fighting and equipping items. Mecha equipment includes head, front shoulder, back shoulder, front arm and back arm. If you want to start battling, you have to press the battle button. There's a red bar which shows your hitpoints. Do your best, so the red bar wouldn't reach the zero. If there are no hitpoints left, you will be ejected from a mecha.
(12 votes, average: 4.83 out of 5)
Prosperous Universe
In Prosperous Universe you'll find yourself in a galaxy, managing your spaceships, finding allies and trying to get rich via buying and selling goods for profit. Realistic and changing economy in which you don't have to grind or waste hours in-game. All players are together in a single universe. No P2W, meaning no in-game purchases that give bonuses, there is a Premium status, but this will not make anyone overpowered.
(12 votes, average: 4.5 out of 5)
SuperMechs
SuperMechs is an action based browser RPG. You start with a weak robot and work your way up by beating other mecha robots for experience and money. Buy new weapons, armors, droids and countless other items. Item upgrade feature to make your current items stronger. Multiplayer option available to test your skills and power against other players. Nice visual design, active community and interesting gameplay makes it definitely worth to play.
(11 votes, average: 3.55 out of 5)
SotoWars
SotoWars is a free text-based browser game that takes you to the science fiction universe. You can explore the galaxy and you can see what planets are free to colonise. When you have found a free planet, you can start a ground exploration. As a new player you should know that there are many different actions to manage your planet. You can name your planet, upload an image, but you can also abandon your planet, in case that it is a colony.
(11 votes, average: 2.09 out of 5)
The Fall
While playing The Fall, you can enter the sci-fi world with planets and galaxy. You ought to collect different resources with each giving you specific advantages. Currency resource offers you a possibility to purchase military and infrastructure. Build credits allow you to build those facilities. Population resource gives you an opportunity to raise troops and collect taxes. Use clever strategies, recruit military units and create an alliance.
(11 votes, average: 3.82 out of 5)
Starwake
Starwake is a free multiplayer space game where it's up to you to choose your destiny. You can take control with your Spaceship and decide what to do. You can defend your Outpost or work up your career with energy and strength. You can also end up in jail when you have more than one account. In this game you can fight for your planet but will you do it? Try this unique game out and decide your destiny.
(10 votes, average: 2.7 out of 5)
ClassicOcrack
ClassicOcrack is a free browser-based text game that allows you to enter the strategic sci-fi world. You can complete daily missions and gain experience which also helps you to gain levels. You should keep in mind that higher levels allow you to use more features. Build a research lab and you are able to do some research on your planet. So construct facilities, gain experience, expand your empire and explore the wide universe.
(9 votes, average: 4.11 out of 5)
EternaVerse
EternaVerse is a browser game with space setting. Production section gives you information about your buildings, defense, shipyard, upgrades and research. You can purchase a blueprint package that includes shields, weapons, cargo capacity and speed. Galaxy allows you to explore the wide galaxy and discover other planets. Under Technology you can read about various ships, research, buildings, officers and defenses. Upgrade your planet and increase your resources.
(8 votes, average: 3.88 out of 5)
Fleet
Fleet is a free text-based browser game with space setting. Find a suitable planet and land on it. You must train your skills such as accuracy, agility, tactics, hacking, engineering, cloaking etc. Complete various missions and earn awards for them. You can construct buildings such as coronal gas collector, heavy foundry, carbon hex factory and so forth. You can also equip weapons, armor, engines etc. Join an alliance, earn more credits, gain experience and apply for a faction.
(8 votes, average: 4.25 out of 5)
SkyLords
SkyLords is a browser-based RPG that includes strategy, space and diplomacy. Keep an eye on your planets where you can see total defense, energy, defensive shield, troops etc. Ships are necessary if you want to move around in the wide space. Diplomacy section allows you to join a clan which requires clan's password. You could also send a message to the clan's leader. Take a closer look at different missions, read through their description and complete them.
(8 votes, average: 4.25 out of 5)
Zyperax
Zyperax is a free space-themed strategy game where you can create your own empire. Antimatter is the most valuable resource as it allows you to improve the empire. Crystal, Deuterium and Metal are resources that are getting produced on every planet. Darkmatter is a special resource that gives you a possibility to hire officers or increase your buildings and researches. You can construct buildings, do various research and create an alliance. You can also hire officers, earn academy points, create moon, purchase items from the market, earn achievements, reach the Hall of Fame and become the best in Zyperax world.
(8 votes, average: 3.25 out of 5)
Space Odyssey
Space Odyssey is a massive free online space game about galaxy. Travel to the future and find yourself far far away in the galaxy. This game includes discovering the galaxy, developing your character, special items you will get and free markets. Build and design your own ship or play against other players. This cool space game is waiting for you!
(7 votes, average: 3.86 out of 5)
OGame Space War
OGame Space War is a sci-fi browser game. Your aim is to protect your resources, so you need to expand your defense facilities such as the Rocket Launcher, the Heavy Laser, an Ion Cannon, Light Lasers and more. Ships and Rocket Launchers protect you from your enemies, but they need to be researched first. Build a Light Cargo to transport resources to other planets. You can build an University to shorten the research time or build the Solar Power plant which absorbs energy from solar radiation. Join an alliance, create a buddy request, build more facilities, collect fleets and keep an eye on your empire.
(7 votes, average: 3.71 out of 5)
GalaxyTrek
GalaxyTrek is a free sci-fi browser game where the aim is to expand your empire. Construct buildings and gather resources to achieve your goal. Make sure to build defenses as some players might try to steal your resources. Join an alliance to get better protection and find awesome tricks for the game. Use espionage-probes to gather information about your opponents and get ready to attack them. Owning more planets gives you the possibility to increase the production of resources, redeploy your resources and hide them. You can recruit heroes, take a look at the technology tree, build ships and conquer the Galaxy.
(7 votes, average: 4.14 out of 5)
Mush
Mush is a space-themed browser game. Your goal is to become the most celebrated hero. Keep in mind that the survival of humanity is depending on you. Start your journey by choosing the character between Gioele Rinaldo, Ian Soulton, Eleesha Williams and Roland Zuccali. Keep your health points high because you're dead if you run out of them. Action and Movement Points are both essential for moving around. Destroy hunters, cooperate with others and communicate with other people by using Walkie-Talkies. You will start playing in Simplified Mode but you can try the Normal Mode as you progress through the game.
(7 votes, average: 4.86 out of 5)
Alone in the Universe
Alone in the Universe is a SciFi text-based browser RPG. Build factories to gather more resources. Manage your logistics and research undiscovered technologies. Colonize other planets to grow your power. While there is no PvP side to the game, you can still help other players in attacking enemies. Various spaceships with different damage levels. Another important side of the game - No pay to win, there are literally no bonuses you can buy for real money.
(7 votes, average: 4.86 out of 5)
Colony-Wars
Colony-Wars is a proper space strategy game. Your journey begins on a small planet and the aim is building a mighty colony. Create new units and don't forget to develop them. Technology section includes various categories and you can see information about current level and a short review of the next level. There are many different missions for you to complete and the rewards are money, resources or units. Create a new alliance, explore the galaxy by choosing directions or take a look at the highest scores. Combat with other players and rule the universe.
(6 votes, average: 4.0 out of 5)
Empire Universe 3
Empire Universe 3 gives you an opportunity to become a commander. Choose your race, pick out a planet, name your colony and start playing. Collect resources to be able to construct buildings. In addition, after the construction, you can upgrade your facilities. You can take a look at the whole universe where you can see other planets. Complete different quests and earn rewards. You can also take part in battles and keep an eye on the battle report.
(6 votes, average: 4.33 out of 5)
Astral Conquest
Astral Conquest is a free text-based sci-fi browser game where you can explore the galaxy and develop your strategy. You can construct various buildings to help you progress further in the game. Build a solar plant because solar power plants absorb energy and all mines need energy to operate. Consider building a research lab to conduct research into new technologies. You can build storages to provide storage for excess resources. In addition, you should build a shipyard because this is the place where ships and defensive facilities are built. Robot factories provide construction robots to help out in the construction of buildings.
(6 votes, average: 4.33 out of 5)
Alien Adoption Agency
Alien Adoption Agency is a text-based browser game about aliens. You can adopt an alien you like and then start training him. Training is important so your alien would get stronger and fight against other aliens. Try to get your alien to the top. Try this cool alien game out and create your own alien.
(5 votes, average: 4.4 out of 5)
Multiverse Warriors
Multiverse Warriors is a free universe browser game. You will start your journey in an undeveloped world and your aim is to create a mighty empire. You can spy on another player to see certain details such as their army size, attack capabilities, population growth, allocation of resources and even more. You can set another player as your commander which is beneficial for both parties - officers gain a percentage of the commanders income and commanders get a population bonus of the officers total unit production. Grow your population, command ships, upgrade your technology, forge alliances, train units, attack other players and destroy their ships.
(5 votes, average: 4.2 out of 5)
CosmoPulse
CosmoPulse is a browser strategy game in sci-fi setting. Build your empire, join alliances, fight pirates. Gameplay is slow-paced and encourages steady development. Mechanics of the game allow for plundering or taking over planets of other players. Another feature is a Fog of War which allows players to implement some secret tactics, and makes espionage important feature.In the Galaxy you can find also some ancient Relics, that can allow you to to travel faster, improve effects of training of your crew, or help to defend your planets from the enemies.
(5 votes, average: 4.2 out of 5)