System98 - Spider Solitaire

Play the DEMO here.

31 variants of spider — Scorpion, Tarantula, Wasp, Beetle, Spiderette, Mondo Spider and the rest — sit behind a grey-and-teal desktop with draggable icons, a Start menu, a taskbar and real movable windows. Pin your favourites to the desktop. Open the rules in one window and play in another. Shut down when you're done.

• 31 spider variants, from one-suit warmups to three-deck Triple Scorpion
• Five themes — Light, Dark, Gruvbox, Nordic, Matrix — that recolour everything at once, cards included
• A real window manager: minimize, maximize, drag, stack
• 78 achievements, tracked locally — no account, no launcher, no telemetry
• A jazz soundtrack that shifts intensity as a game tightens up
• Ten languages, with full rule sheets in each
• Saves your game mid-hand and picks it back up next launch