🏰 Sandcastle Siege
Build tall, build fast — the tide waits for no castle!
How to play Sandcastle Siege
How to play
Sandcastle Siege is a beach stacking challenge. A sand block swings back and forth above your castle — tap, click, or press Space to drop it. Each block lands on the one below, and any part that hangs over the edge crumbles away, making the next block narrower. Stack carefully, because every five blocks the ocean strikes: a wave sweeps in and washes away the two bottom blocks of your castle. Reach 15 blocks tall to complete your castle and win.
Controls
Click, tap the screen, or press the Spacebar to release the swinging block. Press Enter on the start screen to begin, and the same button restarts after a game over. One input does everything — timing is the whole skill.
Tips
- Drop when the block is centered over the tower — even a small overhang gets trimmed.
- The swinger speeds up as your tower grows, so watch two full swings before dropping.
- Wide blocks are precious: protect your base width for the waves ahead.
- Plan around the wave countdown — a wave right after a sloppy drop can be fatal.
Scoring
Every placed block scores 10 points, so a full 15-block castle earns 150 points from placements alone. Your best score is saved on your device. How tall can you build before the tide wins?