Select Game Category
- 3D browser MMORPG (31)
- Adventure browser games (18)
- Economy browser games (14)
- Empire-building browser games (14)
- Fantasy browser games (19)
- Fighting browser games (403)
- Idle Games (14)
- IO Games (15)
- Manager-type browser games (11)
- Medieval browser games (13)
- Mobsters and Mafia browser games (281)
- Multiplayer browser games (75)
- Persistent Browser-based (PBBG) (39)
- Player vs Player (PvP) browser games (38)
- Racing browser games (42)
- Role Playing (RPG) browser games (47)
- Sci-Fi browser games (127)
- Simulation browser games (194)
- Sport browser games (149)
- Strategy browser games (331)
- Text-based browser games (73)
- Turn-based browser games (19)
- Vampire browser games (24)
Sci-Fi browser games
RoboWars
RoboWars is a free online robot RPG. Build your character and start attacking others. Gain skills to get stronger. Use the best armor and weapons to win the battles. Try to reach to battle rankings to be withing top 3 players. There are battle ranks and squad ranks where you can be the best. Collect mines and oil rigs or catch fish. Sign up to start this robot game right now.
(4 votes, average: 1.75 out of 5)
Nemexia
Nemexia is a free sci-fi browser game with the main aim to build a strong empire. Choose your race between Confederation, Noxis and Terteths. The planet includes three different zones. Develop your Resource zone by constructing facilities like Metal Mine, Solar panels, Gas refinery, Nuclear Plant and much more. Make sure to upgrade mines to be able to collect enough resources and construct more buildings. You can explore the Galaxy, create a new alliance, rearrange your flights, upgrade ships and earn special achievements. Complete missions, battle against others and become one of the best commanders in Nemexia.
(4 votes, average: 5.0 out of 5)
Sol Source v2
Sol Source v2 is a strategy space-themed browser game. Make sure to construct a research laboratory to be able to access the research area. Build a Deuterium Refinery as Deuterium can be used as fuel for spaceships. Don't forget to construct a Solar Power plant as they absorb the energy. You could hire officials such as Admiral, Technocrat, Engineer, Commander and Geologist. Each expert will help you a little bit closer to your enemy. Merchant gives you the opportunity to sell your ships in exchange for resources. Explore the Galaxy system and make sure to reach the Hall of Fame.
(4 votes, average: 3.0 out of 5)
Space Kingdoms
Space Kingdoms is a text-based browser game with galaxy and solar systems. There are three spheres such as diplomacy, commerce and military. Manage your planet by constructing buildings, choosing the tax rate, increasing the income and keeping an eye on the unhappiness index. You can become a member of a federation by applying for membership or creating a federation. Trade Center gives you the possibility to buy or sell resources. Build a fleet, earn income from contracts, take a look at the available units on your planets, join battles, train spies, do research and explore the galaxy.
(4 votes, average: 2.75 out of 5)
Interstellar War
5+ Unique races Full player governments Over 200 ships and 300 planets to colonise and control PVP/PVE content and more!
(4 votes, average: 3.75 out of 5)
TransForce
TransForce is browser game combining strategy and sci-fi. Create your own city and start constructing buildings to advance. Different missions will help you through the game, are helpful and also give you bonuses. You can take over nearby cities and even form an alliance. Real cash items are too powerful and will give free players a huge disadvantage. Overall design and images are anime styled.
(3 votes, average: 2.0 out of 5)
1030 Wars
1030 Wars is a Sci-Fi online game. Strategy game where the main focus is on players' military structures. Players start from one small planet, but soon grow into big empires. You will be updating your fleets, building defense units and socializing with your alliance. Control your resources, manage your fleets and ships, research new technologies.
(3 votes, average: 3.67 out of 5)
Battle for Serios
Battle for Serios is a web-based roleplaying game about space and planets. There is a huge variety of different buildings, for instance you can build crystal mine, robot factory, metal mine, crystal storage, research lab, deuterium tank, and many other facilities. Every building has a short description where you can read its' advantages. Explore the wide galaxy, join/create an alliance, make some new friends and try to reach the top.
(3 votes, average: 3.33 out of 5)
Dark Expanse
Dark Expanse is a space strategy browser game. Defense construction is an important section because you can see your current defense status. You can keep an eye on your soldiers and you can always see how many rail gun, ion cannon, defensive satellite, missile platform or dark matter battery you presently own. Fleet construction, on the other hand, gives you a review of the fleet and each ship includes a short description about its essence and advantages.
(3 votes, average: 5.0 out of 5)
Many Suns
Many Suns is a free sci-fi browser game that drags you into a space world. At first you must create an empire and afterwards your goal is to expand your empire. Research tab offers you to research different areas such as chemistry, welfare, architecture, shielding, propulsion, refining, fabrication etc. Expanding your empire can be achievable by constructing facilities such as foundry, mill, synthesizer, factory, jump station, habitat, ion cannon and extractor.
(3 votes, average: 3.67 out of 5)
EuroUniverse
EuroUniverse is a free to play strategy browser game set in the galaxy. This is your opportunity to build awesome facilities such as crystal mine, solar power plant, deuterium refinery, metal mine, nanite factory, deuterium power plant, and so forth. In addition, there's a possibility to research various technologies which means you can explore laboratories. Under resources tab, you could take a closer look at the resources produced on the planet.
(3 votes, average: 2.67 out of 5)
Empire Universe 2
Empire Universe 2 is a sci-fi browser game that takes place in space. You can make a decision whether to play aggressively or peacefully. Overview gives you general information about your planet and resource distribution. Starsystem allows you to take a look at the other planets close to you. There are many various buildings that you can build on your planet, but the control center is the basic facility. Collect points and gain experience to reach the top.
(3 votes, average: 2.67 out of 5)
White Dwarf
White Dwarf is a free browser game that takes place after the fall of the great United Federation of Planets. You can find moon buildings such as Lunar Base, The Robotic Factory, The Shipyard, Sensor Phalanx and other facilities. Building screen is a place where you can build new facilities or upgrade existing buildings. The resource screen is where you can see the production of your mines and control production levels. The Ship Yard is for building fleets. Use technologies, take a look at the Galaxy, build defenses, join an alliance, create metal mines, produce energy, store excess resources and manage your planet.
(3 votes, average: 4.33 out of 5)
Cybots
Cybots - The game of cybernatic gladiators is filled with strategy where you (the Controller) can buy and modify bots to ready them for battles. Reset/round based games, top right corner is where you can always find the reset time, rounds usually don't last over a month. Players compete against each other for Battle Experience Points. With the limited cash you have, make sure to buy the right upgrades to configure your bots the best way possible. You can join a clan or be a lone wolf, up to you.
(3 votes, average: 5.0 out of 5)
DarkHorizons
At DarkHorizons you can build mines on the planet to increase resource production. You need energy to provide job Mines. Get your defenses up and grow your fleets. Upgrade your technology to stay ahead of your competition. Do resources to discover new opportunities. Construct buildings to gain access to more features. Visit shipyard to build more ships and conquer your enemies and galaxies.
(3 votes, average: 4.33 out of 5)
TextSpaced
TextSpaced is a FREE text-based sci-fi MMORPG. It has been designed from the start to be enjoyed by blind and sighted people alike (and everyone in between). It is set in an infinite one-dimensional universe with original art, high-quality music and mechanics. TextSpaced blends the style of more traditional text adventures with modern principles to create a game where everyone coexists in the same expansive universe, which is steeped in lore and intrigue. The entire universe is organic where everything is connected to everything else, every decision you make has a cascade of repercussions for you and your faction. The sandbox nature of the game leaves you, the player, the freedom to decide at any point what to do next.
(3 votes, average: 5.0 out of 5)
Command Crisis
Command Crisis is a space based strategy game. Manage your own empire, grow it as far as you can. Manage your planets and conquer new territory. Different empire upgrades available. The website itself is not responsive. This is why this game is also available as an android app for mobile users. Because better and faster experience for mobile users is always through app. For computer users it is recommended to use Chrome browser for best user experience. IE users may see design flaws when playing.
(2 votes, average: 5.0 out of 5)
Chaotic Century
Chaotic Century is a free space-setting PBBG. Old Town includes main features such as battle, market, labor, game and unique. Suit shop provides clothes for your fighter. Weapon upgrades is a great place to make the weapon attacking stronger. You can deposit and withdraw your money in the galactic bank. Energy reserve allows you to store energy for future use. Once you've bought a casino pass you'll be able to enter supernova casino. Join a clan, start training and increase your level.
(2 votes, average: 5.0 out of 5)
Galactic Imperator
Galactic Imperator is a text-based browser game where you can use clever strategies to become the best. The game includes constant improvements where you can increase the level of city/university/industry/palace. These improvements cost more as you gain higher levels. Build facilities but beforehand you should read through the advantages of each building. Think about a strategy to find out which buildings give you the greatest benefit overall.
(2 votes, average: 4.5 out of 5)
Battle For Equestria
Battle For Equestria is a free browser-based text game with space, galaxy and planets. The game contains building facilities, researching and increasing your empire. Once in a while you should take a look at the daily/weekly production of various resources. You can join an alliance and explore the wide galaxy to see other planets. Hall of Fame includes players with most units so increase the amount of your units and reach the top.
(2 votes, average: 3.0 out of 5)
Planetarion
While playing Planetarion you can enjoy sci-fi world and explore the space. Begin with a research of infrastructure, waves, hulls, asteroid mining, core extraction etc. Each research includes a description where you can find advantages of each research. Under development tab you can start constructing factory, refinery, wave distorter, finance centre, laboratory, structure defence, and so forth. Military section allows you to build various ships.
(2 votes, average: 3.0 out of 5)
Origins Return
Origins Return is a multiplayer sci-fi game where you must develop your planet. The main aim is to create an empire, dominate the universe and become the best emperor. Get ready to colonize new planets, attack others, transfer resources, trade items and ally with other players. Customize your ships by choosing the shield, firepower, speed and the hull for your ships. Vessels are essential as they help you defend your planet and wipe out the enemies. You can choose to play as a warrior, trader or a miner. The first version of Origins Return was already created in 2006 by French developers.
(2 votes, average: 5.0 out of 5)
FreeCraft
FreeCraft is a free space-themed browser game where you can conquer the galaxy. Construct buildings, do research, produce resources and increase your empire. Metal Mine is one of the most important buildings as it's necessary for all emerging empires. Alliance Depot is required to supply fuel to friendly fleets in orbit. Consider building a Research Lab which gives you the possibility to conduct research into new technologies. Create your own alliance, become the leader and start managing the alliance. Use the most clever strategies to place your empire in Hall of Fame where you can only see the best leaders.
(2 votes, average: 5.0 out of 5)
War of Galaxy
War of Galaxy (WoG) is a F2P Sci-Fi browser game. Big part of the game is the Academy, it allows you to take your own path, you decide which power-ups, upgrades and other bonuses you see fit for you the best. Think of it as a skill tree, each player is unique depending on it's skill tree. Game universe contains 200 unique solar systems, each with 20 planets that are unique as well. WoG also has a plot, player can choose between Combat and Peace plot. Increase your population, upgrade your buildings and conquer solar empires if you get your hands on powerful combat equipment.
(2 votes, average: 4.5 out of 5)