| All Country Flags of the World | 0 | - | 5.00 | 3,681,209 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,246 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,386 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,462 |
| Flags with Crescents | 0 | - | 4.98 | 170,147 |
| Country Flag Trivia | 0 | - | 4.81 | 57,377 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,155 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,830 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,816 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,504 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,499 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,063 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,248 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,430 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,966 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,587 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,782 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,478 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,672 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,846 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,779 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,772 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,782 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,883 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,675 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,312 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,745 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,840 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,242 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,556 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,658 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,004 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,200 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,291 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,168 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,582 |
| Flags of North and South America | 0 | - | 4.99 | 374,417 |
| Flags to Languages | 0 | - | 4.95 | 173,937 |
| Former Flags | 0 | - | 4.97 | 107,989 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,035 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,708 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,647 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,337 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 31,062 |
| 20 Random Country Flags | 0 | - | 4.99 | 614,838 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,941 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,316 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,836 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,857 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,025 |
| Flag Maths | 0 | - | 4.64 | 57,793 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,232 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,878 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,072 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,874 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,552 |
| World Coats of Arms | 0 | - | 4.99 | 64,733 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,906 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,065 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 171,995 |
| Similar Flags #1 | 0 | - | 4.75 | 130,289 |
| Similar Flags #2 | 0 | - | 4.74 | 137,588 |
| Emoji Flags | 0 | - | 4.35 | 44,156 |
| Countries by Road Signs | 0 | - | 4.98 | 54,040 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,757 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,350 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,442 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,177 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,002 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,994 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,565 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,268 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,343 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 47,002 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,587 |
| Countries by Picture #1 | 0 | - | 4.51 | 118,538 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,903 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,011 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,834 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,998 |
| Pixelated World Map | 0 | - | 5.00 | 143,657 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,318 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,339 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,751 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,753 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,280 |
| Cities by Satellite #1 | 0 | - | 4.36 | 81,518 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,179 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,665 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,136 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,555 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,118 |
| Places by Country - Tile Select | 0 | - | 4.32 | 14,108 |
| Geography by Picture - B | 0 | - | 4.42 | 55,677 |
| Geography by Picture - H | 0 | - | 4.50 | 58,284 |
| Geography by Picture - N | 0 | - | 4.45 | 42,253 |
| Geography by Picture - R | 0 | - | 4.56 | 41,073 |
| Geography by Picture - T | 0 | - | 4.54 | 57,903 |
| Flags of Oceania | 0 | - | 5.00 | 260,595 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,739 |
| Flags of WW1 | 0 | - | 4.60 | 38,507 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,173 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,079 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,399 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,002 |
| Boundary Waters | 0 | - | 4.92 | 88,588 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,266 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,296 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,764 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,635 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,603 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,602,908 |
| Landlocked Countries | 0 | - | 4.99 | 422,227 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 577,573 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,594 |
| Satellite Images #1 | 0 | - | 4.47 | 129,492 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,407 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,994 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,013 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,046 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,192 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,843 |
| World Capitals Quiz | 0 | - | 5.00 | 5,084,663 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,489 |
| Merged Countries #2 | 0 | - | 4.96 | 99,270 |
| Merged Countries #6 | 0 | - | 4.90 | 73,490 |
| Merged Countries #7 | 0 | - | 4.93 | 82,822 |
| Geography by Picture - A | 0 | - | 4.39 | 60,327 |
| Geography by Picture - D | 0 | - | 4.15 | 45,711 |
| Geography by Picture - F | 0 | - | 4.31 | 51,073 |
| Geography by Picture - G | 0 | - | 4.39 | 48,003 |
| Geography by Picture - J | 0 | - | 4.16 | 38,516 |
| Geography by Picture - K | 0 | - | 4.29 | 33,176 |
| Geography by Picture - C | 0 | - | 4.31 | 57,131 |
| Geography by Picture - L | 0 | - | 4.37 | 59,044 |
| Geography by Picture - M | 0 | - | 4.14 | 40,508 |
| Geography by Picture - P | 0 | - | 4.24 | 42,483 |
| Geography by Picture - S | 0 | - | 4.38 | 47,090 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,421 |
| Islands by Picture | 0 | - | 4.28 | 107,265 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,719 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,043 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,443 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,452 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,768 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,206 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,086 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,582 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,499 |
| Island Countries | 0 | - | 4.99 | 711,138 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,612 |
| Himalayan Countries | 0 | - | 4.95 | 138,859 |
| Andean Countries | 0 | - | 4.93 | 84,686 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,886 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,929 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,516 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,858 |
| Danube Countries | 0 | - | 4.97 | 72,043 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,059 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,456 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,364 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,852 |
| European Landlocked Countries | 0 | - | 4.99 | 147,176 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,694 |
| Countries with the Most Species | 0 | - | 4.99 | 103,267 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,815 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,607 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,732 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,565 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,254 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,693 |
| Countries in the Alps | 0 | - | 4.87 | 118,248 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,270 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,080 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,679 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,624 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,547 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,967 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,702 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,517 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,200 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,878 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,669 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,541 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,246 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,500 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,552 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,968 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,335 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,103 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,128 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,069 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,195 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,255 |
| Largest Countries By Category | 0 | - | 4.97 | 158,258 |
| Countries by Countries | 0 | - | 4.96 | 63,261 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,721 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,299 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,573 |
| Merged Country Flags | 0 | - | 4.88 | 106,976 |
