Space Crash Simulator vs Swipe the Flow

Smash worlds together and watch them shatter, merge, and melt, driven by real physics, not pre-made animations. Every planet is made of thousands of interacting particles, so every collision is computed live and no two impacts ever look the same. Build your own scenario in Setup Mode: place up to 8 bodies, set their size, density, spin and velocity, then let gravity do the rest. Or dive straight into a head-on collision and watch the debris glow, cool, and form a crust. - True particle physics (SPH), the first of its kind on mobile - Molten impact zones: heat, lava, and cooling crusts - Give planets rings or shred a moon into one with tidal forces (Roche limit) - Protoplanetary disk and colliding-galaxies modes - Black holes that tear planets apart - Custom planet textures from your own photos - Runs on everything: tune particle count, accuracy, and timescale to your device

Pour water, draw walls, and change the flow with your fingertips. Swipe the Flow is a hands-on playground for water, wind, and smoke. Enjoy the basic features of all five free-play modes and the first five stages of each of the five challenge games for free. Unlock more challenges and premium visuals with Pro—a one-time purchase, not a subscription. NEW CHALLENGE: WIND TARGET Draw walls, then rotate, move, and carve shapes. The arrow shows how hard the wind pushes—keep its tip inside the box to win. Kites, a sailboat, an umbrella, roof luggage, and a bike behind a truck all catch the wind. • Stages 1–5 are free; Pro includes stage 6 onward • Longer arrows mean a stronger push WATER PLAYGROUND Catch water from a faucet and guide it along walls. Add a drain, pour or erase water, and stir it with your finger to build your own waterway. • Move faucets and drains; adjust each one's size, direction, and speed • Build with cups, funnels, photos, and shapes • Tilt your device to move the water and adjust its thickness • Basic features are free, with up to 10 faucets and drains combined FIVE WAYS TO PLAY • Water Playground: Pour water and draw walls to shape its flow. • Smoke Lab: Follow smoke to see invisible air. Adjust each chimney's smoke output and add a Smoke Eraser. • Wind Tunnel: Watch wind split around walls, photos, and logos. Turn on flow lines and wind push indicators to explore what happens. • Liquid Art: Create, push, stretch, and merge liquid drops. Tilt your device to move them. • Swipe the Flow: Swipe across the screen to draw colorful currents and spirals. FIVE CHALLENGE GAMES • Wind Target: Change the shapes to get the tip of the wind's arrow into the box. • Make Waterways: Draw walls and erase holes to send water where you want it. • Wind Paths: Draw walls to guide wind into the target. • Wind Maze: Carve a route and get the wind out before time runs out. • Smoke Delivery: Move chimneys and draw walls to send smoke where you want it. Stages 1–5 are free in each game. Pro includes Wind Paths 6–15, Wind Maze 6–15, Smoke Delivery 6–15, Make Waterways 6–24, and Wind Target 6–18. Try Game Center leaderboards and achievements, then share a photo of your cleared stage and record. CREATE AND SHARE • Import photos and logos, with background removal on your device • Move, resize, and rotate photo and shape layers with editing handles • Choose flow strength, playback speed, colors, and detail • Pause, reset, save photos, record videos, and share • Photos and videos are processed on your device SWIPE THE FLOW PRO One purchase. No subscription. • Challenge stages beyond the free section • No watermarks • More detailed simulation and all premium visual styles • Up to eight photo or shape layers • Up to 20 chimneys and Smoke Erasers combined in Smoke Lab • Up to 20 faucets and drains combined in Water Playground The free version includes one photo or shape layer. Every day, one Pro stage is free at the top of Home in "What will you play today?" Create without a fixed answer, or take on a puzzle with a goal.