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Disc Flip
by Nebulark Studio · Board · v1.1.0
Outflank and flip discs on an 8×8 slate board: keep a winning streak alive against three AI tiers, or play a friend on one device.
How to play
- Place your amber disc so it traps a straight line (across, down or diagonal) of indigo discs between it and another amber disc; every trapped line flips.
- Click or tap a square to place. Legal squares are marked with small dots (toggle them with the Dots button or H). On a keyboard, move the cursor with the arrow keys and place with Enter or Space.
- Hover a square, move the keyboard cursor onto it, or hold your finger on it to preview the disc and every disc it would flip.
- If you have no legal move you pass automatically. When neither player can move, the most discs wins.
- Against the computer a win scores 100 + 2 × your disc margin and a draw 50. Who opens alternates every game, and one loss ends the streak.
- In Duo mode, Amber and Indigo take turns on one device; Undo (or U) takes back the last disc.
- Your run is saved after every move: use Continue on the menu to pick it up later.
Controls
Keyboard
- Click a square — place a disc
- Hover a square — preview the flips
- Arrows — move the cursor (previews too)
- Enter / Space — place
- H — toggle legal-move dots
- U / Backspace — undo (Duo)
- ? — how to play
- Esc — pause
- M — mute
Touch
- Tap a square — place a disc
- Hold a square — preview the flips
- Dots button — toggle legal-move dots
- Undo button — take back a disc (Duo)
- ? and pause buttons — help / pause
About Disc Flip
Disc Flip is the classic disc-flipping strategy game rebuilt around streaks. Place an amber disc so that it traps a straight line of indigo discs between it and another amber disc, and every trapped line flips over in a wave. If you have no legal move you pass; when neither side can move, the player with more discs wins. Each win against the computer is worth 100 points plus twice your disc margin, a draw is worth 50, and the first loss ends your run. Easy grabs as many discs as it can, Medium plays the corners and edges, and Hard searches five moves ahead with a mobility and stability evaluation. Who opens alternates every game. Duo is a pass-and-play game for two people on one phone, tablet or keyboard, with an Undo button. Hover or hold a square to preview what it would flip, and your run is saved after every move so you can continue later.
Features
- ✓ Easy, Medium and Hard (alpha-beta search) computer opponents
- ✓ Streak scoring with a server-validated leaderboard per tier
- ✓ Local pass-and-play Duo mode with undo
- ✓ Flip preview: see which discs a move would flip before you play it
- ✓ Mouse, keyboard and touch controls with toggleable legal-move dots
- ✓ Lit 3D brass tray, thick two-sided discs that lift and flip with moving shadows, score pops
- ✓ Save and Continue, in-game help, saved personal best per mode
- Category
- Board
- Devices
- desktop, tablet, mobile
- Developer
- Nebulark Studio
- Last updated
- Nov 10, 2026
