Color palettes as is. Can be used as a palette for the game - the order of colors corresponds to the original.

Reordered colors in palettes for use in TIC-80 config is coming soon =)

-- COMMODORE VIC-20 PALETTE
-- pal: 000000ffffffa8734ae9b287772d26b6686285d4dcc5ffffa85fb4e99df5559e4a92df8742348b7e70cabdcc71ffffb0

-- STILL LIFE PALETTE
-- pal: 3f28117a2222d13b27e07f8a5d853a68c127b3e868122615513155286fb89b8bffa8e4d4cc8218c7b581000000ffffff

-- JAPANESE MACHINE PALETTE PALETTE
-- pal: 00000019102846af45a1d685453e787664fe8331299ec2e8dc534be18d79d6b97be9d8a1216c4bd365c8afaab9f5f4eb

-- CGARNE PALETTE
-- pal: 0000005e606e2234d10c7e455c2e78b5b5b5FFFFFFffd93f7be2f98a36224c81fb44aacceb8a60aa5c3d6cd947e23d69

-- PSYGNOSIA PALETTE
-- pal: 0000001b1e29362747443f4152524c64647c73615077785b9ea4a7cbe8f7e08b79a2324e003308084a3c546a00516cbf

-- COLOR GRAPHICS ADAPTER PALETTE
-- pal: 000000555555AAAAAAFFFFFF0000AA5555FF00AA0055FF5500AAAA55FFFFAA0000FF5555AA00AAFF55FFAA5500FFFF55

-- EROGE COPPER PALETTE
-- pal: 0d080d4f2b24825b31c59154f0bd77fbdf9bfff9e4bebbb27bb24e74adbb4180a032535f2a23497d3840c16c5be89973

-- EASTER ISLAND PALETTE 
-- pal: f6f6bfe6d1d1868691794765f5e17aedc38dcc8d86ca657e39d4b98dbcd28184ab6860869dc0857ea788567864051625

I re-order colors by luminance, maybe you can do better. CGA palette by Trelemar.

Re-ordered palettes for use in config.lua:

local VIC20 = 
 "000000".."772d26".."42348b".."a85fb4".."b66862".."7e70ca".."a8734a".."559e4a"..
 "e99df5".."e9b287".."bdcc71".."85d4dc".."92df87".."c5ffff".."ffffb0".."ffffff"

local CGA =
 "000000".."aa0000".."0000aa".."555555".."aa5500".."00aa00".."ff5555".."aaaaaa"..
 "5555ff".."aa00aa".."00aaaa".."55ff55".."ff55ff".."55ffff".."ffff55".."ffffff"

local SLIFE = 
 "000000".."122615".."3f2811".."7a2222".."513155".."d13b27".."286fb8".."5d853a"..
 "cc8218".."e07f8a".."9b8bff".."68c127".."c7b581".."b3e868".."a8e4d4".."ffffff"

local JMP = 
 "000000".."191028".."833129".."453e78".."216c4b".."dc534b".."7664fe".."d365c8"..
 "46af45".."e18d79".."afaab9".."d6b97b".."9ec2e8".."a1d685".."e9d8a1".."f5f4eb"

local CGARNE = 
 "000000".."2234d1".."5c2e78".."8a3622".."5e606e".."0c7e45".."e23d69".."aa5c3d"..
 "4c81fb".."44aacc".."eb8a60".."b5b5b5".."6cd947".."7be2f9".."ffd93f".."ffffff"

local PSYG = 
 "000000".."1b1e29".."003308".."362747".."084a3c".."443f41".."a2324e".."52524c"..
 "546a00".."736150".."64647c".."516cbf".."77785b".."e08b79".."9ea4a7".."cbe8f7"

local EROGE = 
 "0d080d".."2a2349".."4f2b24".."7d3840".."32535f".."825b31".."4180a0".."c16c5b"..
 "c59154".."7bb24e".."74adbb".."e89973".."bebbb2".."f0bd77".."fbdf9b".."fff9e4"

local EISLAND = 
 "051625".."794765".."686086".."567864".."ca657e".."868691".."8184ab".."cc8d86"..
 "7ea788".."39d4b9".."8dbcd2".."9dc085".."edc38d".."e6d1d1".."f5e17a".."f6f6bf"

Thanks for the palettes, I updated the the demo https://tic.computer/play?cart=1

Added ZX-Spectrum color palettes: Pulsar, Alone, Orthodox, Electroscale
For use in cartridge metadata:

-- ZX-Spectrum Orthodox palette
-- pal: 0000000000cda70000a700cd00b70000b7cda7b700a7b7cd0000000000ffd00000d000ff00e40000e4ffd0e400d0e4ff

-- ZX-Spectrum Pulsar palette
-- pal: 0000000000cdcd0000cd00cd00cd0000cdcdcdcd00cdcdcd0000000000ffff0000ff00ff00ff0000ffffffff00ffffff

-- ZX-Spectrum Alone palette
-- pal: 0000000000a0a00000a000a000a00000a0a0a0a000a0a0a00000000000ffff0000ff00ff00ff0000ffffffff00ffffff

-- ZX-Spectrum Electroscale palette
-- pal: 3e414c4e515f5e62736e73867e839a8e94ad9ea4c1aeb5d43e414c525564666a7c7a7f948e93ada2a8c5b5bcddc9d1f5

For use in config.lua:

local ZXORTHO = 
 "000000".."0000cd".."a70000".."a700cd".."00b700".."00b7cd".."a7b700".."a7b7cd"..
 "000000".."0000ff".."d00000".."d000ff".."00e400".."00e4ff".."d0e400".."d0e4ff" 
local ZXPULSAR = 
 "000000".."0000cd".."cd0000".."cd00cd".."00cd00".."00cdcd".."cdcd00".."cdcdcd"..
 "000000".."0000ff".."ff0000".."ff00ff".."00ff00".."00ffff".."ffff00".."ffffff" 
local ZXALONE = 
 "000000".."0000a0".."a00000".."a000a0".."00a000".."00a0a0".."a0a000".."a0a0a0"..
 "000000".."0000ff".."ff0000".."ff00ff".."00ff00".."00ffff".."ffff00".."ffffff" 
local ZXESCALE = 
 "3e414c".."4e515f".."5e6273".."6e7386".."7e839a".."8e94ad".."9ea4c1".."aeb5d4"..
 "3e414c".."525564".."666a7c".."7a7f94".."8e93ad".."a2a8c5".."b5bcdd".."c9d1f5"

local DBsFun16 =
"080008".."2a3443".."5d4632".."44508c".."a6414d".."5e6660".."c86b36".."8375af"..
"52903c".."db7ebd".."5b99f4".."deac85".."94cc4e".."84dbfc".."f2de70".."fcfffe"

http://imgur.com/vZ0Iew6

and there are these ones:

- tms9918 (Colecovision, Sega-sg1000, msx1, ti-99/4a, etc.): https://en.wikipedia.org/wiki/List_of_8-bit_computer_hardware_palettes#Original_... - "000000".."000000".."3EB849".."74D07D".."5955E0".."8076F1".."B95E51".."65DBEF".."DB6559".."FF897D".."CCC35E".."DED087".."3AA241".."B766B5".."CCCCCC".."FFFFFF"

- Sega Master System legacy display modes: http://www.smspower.org/Development/Palette#MasterSystemMarkIII - "000000".."000000".."00AA00".."00FF00".."000055".."0000FF".."550000".."00FFFF".."AA0000".."FF0000".."555500".."FFFF00".."005500".."FF00FF".."555555".."FFFFFF"

 - Thomson mo5: https://en.wikipedia.org/wiki/List_of_8-bit_computer_hardware_palettes#Thomson - "000000".."FF0000".."00FF00".."FFFF00".."0000FF".."FF00FF".."00FFFF".."FFFFFF".."BBBBBB".."DD7777".."77DD77".."DDDD77".."7777DD".."DD77EE".."BBFFFF".."EEBB00"

- Apple II: https://en.wikipedia.org/wiki/List_of_8-bit_computer_hardware_palettes#Apple_II_... - "000000".."6C2940".."403578".."D93CF0".."135740".."808080".."2697F0".."BFB4F8".."404B07".."D9680F".."808080".."ECA8BF".."26C30F".."BFCA87".."93D6BF".."FFFFFF"

- Intellivision: http://atariage.com/forums/topic/196007-intellivision-font-bitmapcolor-palette-p... - "000000".."0000FF".."FF0000".."CAFF64".."008000".."00FF00".."FFFA17".."FFFFFF".."808080".."FFB200".."00FFFF".."7F7F00".."FF3FFF".."7F7FFF".."80FF00".."FF007F"

- MacOS Classic 4.1 in 16 colours mode: https://en.wikipedia.org/wiki/List_of_software_palettes#Apple_Macintosh_default_... - "FFFFFF".."FFFF00".."FF6600".."DD0000".."FF0099".."330099".."0000CC".."0099CC".."00AA00".."006600".."663300".."996633".."BBBBBB".."888888".."444444".."000000"

- Acorn RiscOS (i didn’t know this one) - https://en.wikipedia.org/wiki/List_of_software_palettes#RISC_OS_default_palette - "FFFFFF".."DDDDDD".."BBBBBB".."999999".."777777".."555555".."333333".."000000".."004499".."EEEE00".."00CC00".."DD0000".."EEEEBB".."558800".."FFBB00".."00BBFF"

- SGI Irix 4DWM (used on those known vectorial icons around early 90’s - https://darkdoomer.deviantart.com/art/da-motherfuckin-irix-icon-set-179568520  ) seems also a great palette, i guess it’s something like "000000".."FF0000".."00FF00".."FFFF00".."0000FF".."FF00FF".."00FFFF".."FFFFFF".."555555".."C08080".."80C080".."808040".."8080C0".."804080".."408080".."AAAAAA"

there might be more interesting palettes around, like that one Mojón Twins used on their ula-plus zx-spectrum games: : http://www.mojontwins.com/juegos_mojonos/subacuatic/ - - "000000".."00006F".."902500".."6F00FF".."00B56F".."0090FF".."FF9000".."B5B590".."000000".."0000FF".."B54A00".."B54AFF".."6FFF00".."6FB5FF".."FFFF6F".."FFFFFF"

soon i’ll try to find more palettes! ;)

- Mattel Aquarius: "#000000".."C4001B".."07BF00".."C9B908".."0006B7".."B800D2".."00C7A4".."FFFFFF".."BFBFBF".."41A695".."832890".."060E69".."BAB256".."3C982F".."7F192A".."000000"