404 - Unique 404 page not found
54 Languages, 1331 bytes
><>, Gol><>, Foo, Befunge-93, Befunge-98, brainfuck, Brain-Flak, Python 2, Python 3, Hexagony, Perl, Ruby, Julia, Cardinal, Brainbash, Turtlèd, Deadfish~, Whitespace, Braille, Rail, Fission, ETA, Trigger, Self-modifying Brainfuck, Numberwang, Actually, Emoji, Symbolic Brainfuck, TinCan, Alphuck, Shove, Cood, Wise, Width, Whispers, Thue, Surface, Stones, evil, Set, Prelude, Gaot++, Cubix, Cubically, PATH, Commercial, Brian & Chuck, Monkeys, Nhohnhehr, Beam, AsciiDots, Alumin, Alice, Whirl
This is getting very long, so at @MDXF's suggestion, I'm moving the subprograms and comments to a gist. The program here is only the final program. Thanks to MDXF again for providing the TIO test driver.
54. Whirl
##\$"404"#N#S# , ,,#$#?@\404!?@GJlICJlGCC*G^+0%=%=+0%x&fqpqqqiipsoddddoiipsohphhhhyhhhh? ?nnn4$4#!000110000011110000100000100000110000011001100000111100001110011000111000110000
#?\++++:----:++++:H@((((4O0O4O@((((()()()){}){x}x){}x()){}){}()){}){})<[-]>[-]-[<+>-----]<+x%"404"?.⌂----.++++.>11
#i(N/"404"ooo@ENTHOEONHSSEONTHOEONSETssipceaiiiiiscejiiiijeeeejapmzaeeaeueewzaeeeaeewzaeeaeueewqs??|?)999|997+|++++!999777+++++!999997+++++!
print(404)
__DATA__=1
# \"404"*CC'[-][ .-$_"404"&]
"""pp
I want 404 of this
How much is it
# -52, Z, -1 #
# -48, Y, -1 #
# -52, X, -1 #
[-][
x::=~404
::=
x
]<<<
> 404
>> Output 1
red up two blue up red up one blue up red up two blue up
baaaaa bleeeeeeeeet bleeeeeeeeet baaaaa bleeeeeeeeet
a now 404 dollar off!
a has been selling out worldwide!
2 LEFT
2 LEFT
2 UP
2 LEFT
2 TEACH
1 LEFT
1 RIGHT
1 BOND
1 BOND
1 TEACH
2 YELL
1 FIGHT
2 YELL
1 TEACH
2 YELL
set ! 52
set ! 48
set ! 52
+------+
|$0011\|
|/000\0|
|0/0@11|
|00 10|
|0\10/0|
|\1100/|
+------+
$'main'
\-444o000o444omm^
[-][$++++++++++++++++++++++++++++++++++++++++++++++++++++.----.++++.#
<<<<<<```>>>>.>.>.
]
ss"""
#7777777777777777777777777777724091557093543643404➡77▲▲▲²²▲²²¡▼▼▼▼¡▲▲▲▲¡⠎⡆⡎⡆⢐⠣⠃s&&&&~-<<:<<:<<<:<:>>>>>>>>:^||||G<>
Try it online!
Whirl is described as a Turning Tarpit [sic], which uses only two instructions, 1 and 0. 1 rotates the current wheel of instructions (either the math wheel or the operations wheel), 0 swaps the rotation of the wheel, and two 0s executes the instruction and switches wheels. The relevant instructions are on the first line:
000110000011110000100000100000110000011001100000111100001110011000111000110000
000110000 Switch to math wheel and execute math.not (math.val = 1)
011110000 Execute math.store, (memval = math.val = 1)
10000 Execute math.add, (math.val = math.val+memval = 1+1 = 2)
010000 Execute math.store (memval = math.val = 2)
0110000 Execute math.multiply, (math.val = math.val*memval = 2*2 = 4)
01100 Execute math.store (memval=math.val) and switch to the ops ring
110000 Execute ops.one (ops.val = 1)
011110000 Executes ops.intio, printing memval (4)
11100 Add one to memory pointer (memval=0)
1100 Execute maths.nop to switch back to ops ring
011100 Execute ops.intio, printing memval (0)
01100 Execute maths.store, (memval=maths.val=4)
00 Execute maths.intio, printing memval (4)
The leading 01s cancel each other out, and the trailing 01s cause a floating point exception.
Edit: fixed a bunch of broken stuff
(Commands to be careful about in the future: UDLR%"[.]o473psjw)
If any programs work for future languages or don't work for current or previous languages, please comment.
53 languages, 2789 bytes
Bash, Foo, Implicit, Charcoal, Emoji, ><>, rk, Brain-Flak, C, Set, Cood, Arcyou, TRANSCRIPT, S.I.L.O.S, Commercial, C++, Braille, Deadfish~, Memescript 1.0, ETA, Python 1, Python 3, PARI/GP, Lily, Fission, Decimal, Cubically, Bitwise, TinCan, Whispers, Thue, Emotinomicon, what??!, Ook!, evil, Lennyfuck, Blablafuck, Stones, TacO, COW, Symbolic Brainfuck, Underload, Rail, Reticular, Gaot++, PATH, axo, Monkeys, Nhohnhehr, xEec, VTFF, K-on Fuck, Churro, and Forked. Try everything online in the test driver!
Join us in the chatroom for this challenge!
This post got way too large so here's a gist containing my progress. Current final program:
Forked
#undef l" 404"p;((((\)0)0)0)0;(4⏬0⏬4⏬«404»[:5*11-1/1]%&)(404)S^/*NNNNTNNEONHSSEONTHOEONiisoddddoiisohOok! Ook! Ook! Ook? Ook? Ook. Ook. Ook. Ook. Ook? Ook! Ook! Ook! Ook! Ook! Ook! Ook! Ook! Ook! Ook! Ook? Ook! Ook? Ook. Ook. Ook. Ook! Ook. Ook! Ook! Ook! Ook! Ook! Ook! Ook! Ook! Ook! Ook. Ook. Ook. Ook. Ook. Ook. Ook. Ook. Ook. Ook! Ook. ????!?!!?!??!!!???????????????!?!!!?!????!??????????????!!??!??!??!????!⎚404»404➡ to for the and of to to to to to is the and a to to to to a and and and and a ;n4n0n4
#11404D301 \4%0%p%&
""""echo 404|| rk:start int x = 404 print: x rk:end R"404"*
exit;
#;
OUT &52 &1
OUT &48 &1
OUT &52 &1 */
#include<stdio.h>
main(){char aA[]={37,100,0};printf(aA,404);}/*<<<<<mzaeeeaeeaaaawuuuuwaaaa what the frick frack backtrack snick snack tic tac snick snack patty wack diddily dack tic tac diddily dack frick frack quarterback frick frack
x::=~404
::=
x #
set ! 52
#;⠎⡆⡎⡆⢐⠣⠃▲▲▲²²▲²²¡▼▼▼▼¡▲▲▲▲¡(♥ ͜ʖ♥)( ͡°((∩ ͡° ͜ʖ ͡°)⊃━☆ﾟ.*( ͡° ͜ʖ ͡°)ᕦ( ͡°ヮ ͡°)ᕥ(♥ ͜ʖ♥)(♥ ͜ʖ♥)(♥ ͜ʖ♥)(♥ ͜ʖ♥)(♥ ͜ʖ♥)) ͡°)(∩ ͡° ͜ʖ ͡°)⊃━☆ﾟ.*( ͡° ͜ʖ ͡°)(> ͜ʖ<)(♥ ͜ʖ♥)(♥ ͜ʖ♥)(♥ ͜ʖ♥)(♥ ͜ʖ♥)(> ͜ʖ<)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)(> ͜ʖ<)うんうんうんうんたんたんたんたんうんうんうんたんうんたんうんうんうんうんうんたんたんうんたんたんうんたんたんうんたんたんうんたんたんたんたんたんうんうんたんうんたんうんたんうんうんうんたんたんうんたんたんうんたんたんうんたんたんたんうんうんうんたんうんうんたんうんうんたんうんうんたんうんたんうんうん {o}===}{======={o}{o}}{======={o}{o}===}{======={o}
> 404
>> Output 1
I want 404 of this.
How much is it?
Ju is here.
>Ju, 404
>X Ju
b = 404
printInt b ;
set ! 48 MoOMoOMoO
set ! 52 MoOOOMmoO
+--------+
|$00110\ |
|/00001/ |
|\11000\ |
|/11000/ |
|\0100 \ |
| | baaaaa bleeeeeeeeet
| 404p@ |
| |
+--------+
$'main': OOMmOoOOM ;
\-444o000o444o-{<$$^- >}+{-----v}+.----.++++.#
# bleeeeeeeeet baaaaa ^ < bleeeeeeeeet >
2 LEFT
2 LEFT
2 UP
2 LEFT
2 TEACH
1 LEFT
1 RIGHT
1 BOND
1 BOND
1 TEACH
2 YELL
1 FIGHT
2 YELL
1 TEACH
2 YELL
red up two blue up red up one blue up red up two blue up ;
o now 404 dollars off!
o has been selling out worldwide!
# -52, Z, -1 #
# -48, Y, -1 #
# -52, X, -1 #
⡆⡎⡆⢐⠣⠃((((p 404)((()(((()()()){}){}){}){}){}){}){}) h#4 o# h#0 o# h#4 o# """
print(404)#"*/
Try it online!
My new (-ly implemented) esolang!
34 Languages, 387 characters
Jelly, M, Pyon, Proton, Python 3, Python 2, Python 1, Perl 6, Perl 5, Ruby, bc, Pari/GP, brainfuck, Emoji, Emotinmicon, Charcoal, Braingolf, Whitespace, Deadfish~, Deadfish, Self-modifying Brainfuck, Symbolic Brainfuck, Numberwang, Cardinal, Actually, Fission, Prelude, Brain-Flak (BrainHack), Alphuck, Deadfish x, TacO, Braille, rk, evil
This answer is getting very long so here is the full answer. From now on only the last program will be kept here.
If anyone finds that one of the programs is broken for one language or one program works for a language it shouldn't, let me know.
print(404)
+1#<[-]>--[<+>-----]"404".⌂<+.----.++++.404➡⎚404»___pppissiiiisiiiio▲▲▲²²▲²²¡▼▼▼▼¡▲▲▲▲¡sipceaiiiiiscejiiiijeeeejaxxcxxxcxxxKddddKcxxxx7777777724091557093543643%R"404";77999++++++++!++++++++6+1+!++++++5++++!> @p404 sp7 rk:start print: "404"77szaeeaeueewzaeeeaeewzaeeaeueew
+1#((a(()a((()(((()()())a{})a{})a{})a{})a{})a{})a{})
+1#ṛ“Nạç»⠎⡆⡎⡆⢐⠣⠃
Try it online!