City Siege 4: Alien Siege

Experience the best of arcade games with City Siege 4: Alien Siege, a thrilling and action-packed online shooting game. As the commander of space troopers, it's up to you to navigate hostile alien planets and complete challenging missions. Upgrade your weapons and recruit new troops to aid you in your mission. Take down the aliens while they are unaware and rescue the hostages trapped by these extraterrestrial beings. Beware of explosive plants that can both aid you and harm you. Shoot them to eliminate aliens and uncover valuable minerals. But be cautious, as the explosion can also hurt you. Immerse yourself in this free online game and explore the captivating world of alien warfare. Collect valuable resources and save the hostages to earn all three stars. Play more of the best free shooter games from this series on both mobile and desktop versions of our website. Take control of an alien shooter and embark on an exhilarating arcade adventure.