Look & Feel
Eighteen themes, one game
Every theme restyles the whole game — palette, block art, backdrop, an ambient effect and its own soundtrack. Eight ship free in the box; six more unlock with a one-time purchase, and three are earned by playing. Switch any time under Settings → Themes, or set Random for a fresh look each launch.
Free in the box 8 themes
No purchase, no account — all eight are yours from the first launch.
Synthwave
The default era — outrun neon, glowing grids and a retro sun sinking behind the boards.
Classic
The original faithfully restored — year-2000 block art on grey Windows-XP chrome.
Cosmos
Deep space — a drifting nebula and scattered stars behind cool violet blocks.
Emerald
Cool green neon and glassy jade boards, calm and high-contrast.
Crimson
Molten red-orange — a furnace glow that makes every attack feel dangerous.
Retro
The iconic four-green Game Boy LCD — a monochrome DMG palette, dot-matrix and all. Pure handheld nostalgia.
Rainy Day
A moody neon cityscape with rain drifting past the window behind the boards.
Abyss · New
A deep-sea descent — drifting jellyfish, glowing coral and bioluminescent light rising through the dark.
Premium 7 themes
A one-time purchase, verified offline on all your devices — a way to keep Blocktrix alive and ad-free. Redeem your code in-game under Settings → Unlocks.
Founder
Rivers of molten gold over cracked obsidian, with its own soundtrack — and a gold ✦ Founder badge shown beside your name in multiplayer lobbies.
Frost · Theme Pack
Icy blue neon with gentle falling snow drifting across the field.
Aurora · Theme Pack
Flowing northern-lights ribbons behind luminous boards.
Sunny · Theme Pack
Bright, cheerful daylight — the one theme that isn't after dark.
Heroes · Theme Pack 2
Comic-book superhero action — bold ink-and-halftone heroes over a rooftop skyline, with a soaring blockbuster fanfare.
Glam · Theme Pack 2
An 80s hair-metal stage — sweeping spotlights, sparks and a mic stand, with a shredding glam-rock soundtrack.
Cartoon · Theme Pack 2
Saturday-morning pop — bright 80s Memphis shapes and confetti, and a Blocktrix wordmark that gently see-saws to the beat.
Earn it 3 themes
Not for sale — unlocked by playing. Ukiyo-e lands when you earn the Ritual achievement (play a solo game seven days in a row); Cipher unlocks when you clear 2,000 solo lines; and Prism is earned by sharing Blocktrix with a friend.
Ukiyo-e · Ritual
A Japanese woodblock world — muted vermilion, indigo and ochre pigments over a Red-Fuji dawn, with drifting cherry-blossom petals and a koto & shakuhachi soundtrack.
Cipher · 2,000 lines
A code-vortex descent — cascading green glyphs spiralling into the dark. Clear 2,000 solo lines to decrypt it.
Prism · Referral
Crystalline light — pastel shards and soft refraction drifting through the dark. Earned by sharing Blocktrix with a friend.