| All Country Flags of the World | 0 | - | 5.00 | 3,598,421 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,678 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,075 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,431 |
| Flags with Crescents | 0 | - | 4.98 | 167,441 |
| Country Flag Trivia | 0 | - | 4.81 | 55,864 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,332 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,411 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,838 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,984 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,623 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,107 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,737 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,005 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,507 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,828 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,541 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,556 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,295 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,664 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,736 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,528 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,217 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,763 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,231 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,640 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,720 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,344 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,651 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,706 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,920 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,013 |
| Flags of North and South America | 0 | - | 4.99 | 366,575 |
| Flags to Languages | 0 | - | 4.95 | 172,425 |
| Former Flags | 0 | - | 4.97 | 106,608 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,594 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,145 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,742 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,525 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,684 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,979 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,025 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,571 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,459 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,392 |
| Flag Maths | 0 | - | 4.78 | 57,669 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,301 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,928 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,428 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,341 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,265 |
| World Coats of Arms | 0 | - | 4.99 | 63,819 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,305 |
| Similar Flags #1 | 0 | - | 4.74 | 129,040 |
| Similar Flags #2 | 0 | - | 4.74 | 136,309 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,316 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,719 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,793 |
| Emoji Flags | 0 | - | 4.35 | 43,803 |
| Countries by Road Signs | 0 | - | 4.98 | 53,060 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,990 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,975 |
| Select the World Flags | 0 | - | 4.27 | 37,389 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,265 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,543 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,013 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,658 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,793 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,665 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,206 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,339 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,964 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,357 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,765 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,533 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,097 |
| Pixelated World Map | 0 | - | 5.00 | 142,368 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,861 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,348 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,648 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,922 |
| Boundary Waters | 0 | - | 4.92 | 88,024 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,795 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,232 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,223 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,809 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,697 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,236 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,900 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,028 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,537 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,141 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,910 |
| Geography by Picture - B | 0 | - | 4.42 | 55,398 |
| Geography by Picture - H | 0 | - | 4.49 | 58,033 |
| Geography by Picture - N | 0 | - | 4.45 | 42,040 |
| Geography by Picture - R | 0 | - | 4.55 | 40,872 |
| Geography by Picture - T | 0 | - | 4.54 | 57,666 |
| Flags of Oceania | 0 | - | 5.00 | 254,935 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,781 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,395 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,025 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,355 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,744 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,887,782 |
| Flags of WW1 | 0 | - | 4.60 | 37,915 |
| Landlocked Countries | 0 | - | 4.99 | 413,242 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 551,848 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,989 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,969 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,634 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,634 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,795 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,323 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,735 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,131 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,957 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,538 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,895 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,878 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,413 |
| Himalayan Countries | 0 | - | 4.95 | 135,201 |
| Andean Countries | 0 | - | 4.94 | 82,750 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,162 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,103 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,829 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,535 |
| Danube Countries | 0 | - | 4.97 | 71,041 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,704 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,497 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,386 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,309 |
| European Landlocked Countries | 0 | - | 4.99 | 145,711 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,132 |
| Countries with the Most Species | 0 | - | 4.99 | 95,222 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,283 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,190 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,354 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,936 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,547 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,913 |
| Countries in the Alps | 0 | - | 4.87 | 116,761 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,521 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,172 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,980 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,384 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,108 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,965 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,521 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,723 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,018 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,015 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,180 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,018 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,408 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,707 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,718 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,983 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,603 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,233 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,730 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,055 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,515 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,571 |
| Largest Countries By Category | 0 | - | 4.97 | 156,686 |
| Countries by Countries | 0 | - | 4.96 | 62,219 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,318 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,950 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,313 |
| Merged Country Flags | 0 | - | 4.88 | 105,970 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,544 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,063 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,024 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,721 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,217 |
| Merged Countries #2 | 0 | - | 4.96 | 98,432 |
| Merged Countries #6 | 0 | - | 4.91 | 72,676 |
| Merged Countries #7 | 0 | - | 4.92 | 81,919 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,672 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,472 |
| Geography by Picture - A | 0 | - | 4.39 | 60,040 |
| Geography by Picture - D | 0 | - | 4.15 | 45,480 |
| Geography by Picture - F | 0 | - | 4.31 | 50,817 |
| Geography by Picture - G | 0 | - | 4.38 | 47,779 |
| Geography by Picture - J | 0 | - | 4.16 | 38,331 |
| Geography by Picture - K | 0 | - | 4.28 | 33,010 |
| Geography by Picture - C | 0 | - | 4.31 | 56,899 |
| Geography by Picture - L | 0 | - | 4.37 | 58,743 |
| Geography by Picture - M | 0 | - | 4.14 | 40,339 |
| Geography by Picture - P | 0 | - | 4.24 | 42,293 |
| Geography by Picture - S | 0 | - | 4.38 | 46,903 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,518 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,223 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,424 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,300 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,590 |
| Longest International Borders | 0 | - | 4.99 | 263,475 |
| Countries with Three Borders | 0 | - | 4.96 | 36,162 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,584 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,638 |
