Here is a list of the optimal languages for each individual quiz that exists on the SeTerra website. Considering there are so many different categories, I will not put all of them here right now, but hopefully I will be able to make a full list soon.

EDIT (24/09/2024) : As I haven't run this game in months now, I am not planning on completing this guide. You can use this as a reference to help you, or try to finish the list yourself. Good luck with your future runs. :)

The "optimal languages" are purely based on the number of characters it takes to type every country/district/city/etc. name in the quiz. I will only take in account languages that use the latin alphabet (that means excluding greek, russian, ukrainian, hebrew, etc.), as it would be inconvenient for a majority of runners. I will also provide the four best languages for each category (sometimes more if there are ties), in case there are certain characters that you are not able to type with your keyboard (such as ß, ð, etc.) in the most optimal language. Keep in mind that characters with diacritics (é, è, ï, ç, ñ, etc.) can be typed without them, and it will still count as correct ! (note : Ø can also be typed as "o", and it works too !")

Finally, some languages will appear as if they are not available for a certain game, but they can still be accessed by adding "?locale=XX" where XX is the code of the language you want to play as. However, it will sometimes result in some names not being translated - in that case, I will still put the language in the list. Although I am not sure if playing a half-translated game would really be "legal", determining whether a name is translated or not can sometimes be difficult. Not only do I not know most of the languages that are available, but sometimes several translations are possible (such as Luxembourg being translated as Luxemburg in Finnish in some categories, but as Luxembourg in others). Funnily enough, English happens to be a "hidden language" for several games, even when it's the default one ! Some languages still cannot be accessed even with this method, but if you can't find the fastest language in the list, here's how to get it ! I will put all "hidden languages" in italics in this list.

The codes for each language (that use the latin alphabet) are : af (Afrikaans), cs (Czech), da (Danish), de (German), en (English), es (Spanish), et (Estonian), fi (Finnish), fr (French), ga (Irish), hr (Croatian), hu (Hungarian), id (Indonesian), is (Icelandic), it (Italian), lt (Lithuanian), lv (Latvian), nb (Nowegian), nl (Dutch), pl (Polish), pt (Portuguese), ro (Romanian), sk (Slovak), sl (Slovene), sq (Albanian), sv (Swedish), tr (Turkish), uz (Uzbek).

With that being said, here is the list !

Europe

Map games

Europe: Countries (with Kosovo) - Finnish (357 characters), Polish (365 characters), Norwegian (367 characters), Romanian (369 characters)

Europe: Countries (without Kosovo) - Finnish (351 characters), Polish (359 characters), Norwegian (361 characters), Romanian (363 characters)

Europe: Countries Outlines - Finnish (357 characters), Polish (365 characters), Norwegian (367 characters), Romanian (369 characters)

European Union: Countries (after Brexit) - Finnish (181 characters), Polish (187 characters), Norwegian (192 characters), Slovene and English (197 characters)

European Union: Countries (before Brexit) - Finnish (194 characters), Polish (202 characters), Norwegian (205 characters), French (210 characters)

Europe: Capitals (with Pristina) - Czech (305 characters), Slovak (307 characters), Turkish (309 characters), Polish (310 characters)

Europe: Capitals (without Pristina) - Czech (297 characters), Slovak (299 characters), Turkish and Polish (301 characters) [Note : Yes, Slovak is shown for this category but not for the "with Pristina" one, and it's the opposite with the other languages. Go figure why.]

Europe: Capitals (easy version) - Czech (253 characters), Slovak (255 characters), Turkish (357 characters), Indonesian (361 characters)

Northern Europe: Countries - Estonian (62 characters), Finnish (65 characters), Norwegian and Icelandic (71 characters)

Southern Europe: Countries (with Kosovo) - French (148 characters), Norwegian (149 characters), Romanian (150 characters), Turkish (151 characters)

Southern Europe: Countries (without Kosovo) - French (142 characters), Norwegian (143 characters), Romanian (144 characters), Turkish (145 characters) [Note : the only shown languages for this category are Spanish and Slovak, for some reason lol.]

Eastern Europe: Countries - Polish (68 characters), Finnish (71 characters), Afrikaans (72 characters), Turkish (74 characters)

Western Europe: Countries - Indonesian (68 characters), Romanian (69 characters), Danish and Finnish and Turkish (71 characters)

Cold War Europe (1949-1989) - Finnish (221 characters), Polish (224 characters), Norwegian (228 characters), Indonesian (232 characters)

Europe 1939 (March-September) - Finnish (230 characters), Norwegian (228 characters), Estonian (232 characters), Indonesian (237 characters)

Europe 1919 - Finnish (195 characters), Estonian and Romanian (206 characters), Polish (207 characters)

Europe 1914 - Indonesian (181 characters), Icelandic (187 characters), French (191 characters), Finnish and Romanian (192 characters)

The Nordic Countries - Estonian (27 characters), Finnish (29 characters), Slovak and Czech (31 characters)

The Nordic Countries and Capitals - Norwegian (64 characters), Slovak (65 characters), Czech (66 characters), Estonian (67 characters)

Map games (individual countries)

Austria: Neighboring Countries - Finnish (67 characters), Polish and Slovene (69 characters), Turkish (71 characters)

France: Neighboring Countries - Finnish (60 characters), Indonesian (61 characters), Estonian and Icelandic and Romanian (62 characters)

Germany: Neighboring Countries - Finnish (69 characters), Polish (71 characters), Danish (72 characters), Slovene (73 characters)

Switzerland: Neighboring Countries - Finnish and Indonesian and Portuguese (45 characters), Estonian and Slovene and Turkish (46 characters)