Solar Spade - Heliosphere Defender, 3D Retro Space Shooter Arcade Inspired by 80's coin-operated arcade games, Solar Spade is a 3D retro space shooter arcade. Designed to combine the feel and fun of some of the original coin-operated arcade games with modern 3D graphics and physics based character control. Our game has resulted in a unique and nostalgic space shooter arcade experience, playable on mobile devices. You have limited time to collect minerals from asteroids, and to generate bombs to stop the imminent alien threat, in indie developer Rowley Games' flagship arcade game for Android. Travel through space and visit our local planets in your elite spaceship defending our precious home from the imminent alien threat. Visit local space planets Mercury, Venus and Mars, and some nearby asteroid fields. Physics based controls. Select from full-tilt, touch-screen thumb-pad, tilt-steering, or gamepad controls to suit your play style. Works excellent on larger phones, designed with tablets or larger screen formats in mind.  Android TV is also supported for an excellent arcade experience (Game Controller required). Collect spades to trade in for upgrades, and set high scores in the leaderboards. Gain level and rank to unlock higher-difficulty challenges. (Challenge levels 7-9 will unlock with rank achievements only after "full game unlock" item purchase). Exchange earned spades, or purchase various upgrades or add-ons directly, for use in-game.   Additional ships with different physical characteristics (mass/thrust/durability/maneuverability) available for purchase in game. Additional maps and more content still under development, and will be added to the in-game trading port and store once ready for play. Please visit RowleyGames.com for news and information regarding our independent video game studio and for further details.