| All Country Flags of the World | 0 | - | 5.00 | 3,606,688 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,230 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,822 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,972 |
| Flags with Crescents | 0 | - | 4.98 | 167,707 |
| Country Flag Trivia | 0 | - | 4.81 | 56,003 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,519 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,534 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,017 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,099 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,015 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,457 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,059 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,471 |
| Flags that are Red & White Only | 0 | - | 4.97 | 162,162 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,793 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,476 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,717 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,741 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,478 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,802 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,882 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,656 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,376 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,879 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,315 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,721 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,816 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,567 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,855 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,973 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,165 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,074 |
| Flags of North and South America | 0 | - | 4.99 | 367,844 |
| Flags to Languages | 0 | - | 4.95 | 172,594 |
| Former Flags | 0 | - | 4.97 | 106,790 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,652 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,162 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,841 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,828 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,725 |
| 20 Random Country Flags | 0 | - | 4.99 | 605,072 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,115 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,670 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,607 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,549 |
| Flag Maths | 0 | - | 4.78 | 57,683 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,467 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,005 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,465 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,395 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,292 |
| World Coats of Arms | 0 | - | 4.99 | 63,924 |
| Similar Flags #1 | 0 | - | 4.74 | 129,181 |
| Similar Flags #2 | 0 | - | 4.74 | 136,439 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,464 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,883 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,023 |
| Emoji Flags | 0 | - | 4.35 | 43,834 |
| Countries by Road Signs | 0 | - | 4.98 | 53,152 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,078 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,011 |
| Select the World Flags | 0 | - | 4.27 | 37,424 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,349 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,602 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,077 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,709 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,850 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.56 | 46,700 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,236 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,417 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,006 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,421 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,891 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,228,130 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,166 |
| Pixelated World Map | 0 | - | 5.00 | 142,512 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,957 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,450 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,754 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,959 |
| Boundary Waters | 0 | - | 4.92 | 88,070 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,840 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,359 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,385 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,885 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,793 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,319 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,924 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,052 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,588 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,165 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,926 |
| Geography by Picture - B | 0 | - | 4.42 | 55,430 |
| Geography by Picture - H | 0 | - | 4.49 | 58,064 |
| Geography by Picture - N | 0 | - | 4.45 | 42,059 |
| Geography by Picture - R | 0 | - | 4.55 | 40,885 |
| Geography by Picture - T | 0 | - | 4.54 | 57,692 |
| Flags of Oceania | 0 | - | 5.00 | 255,550 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,991 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,501 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,139 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,487 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,883 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,958,472 |
| Flags of WW1 | 0 | - | 4.60 | 37,984 |
| Landlocked Countries | 0 | - | 4.99 | 414,072 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 554,270 |
| Satellite Images #1 | 0 | - | 4.46 | 129,044 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,012 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,671 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,673 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,821 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,413 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,743 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,199 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,057 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,721 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,127 |
| World Capitals Quiz | 0 | - | 5.00 | 5,034,626 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,776 |
| Himalayan Countries | 0 | - | 4.95 | 135,517 |
| Andean Countries | 0 | - | 4.94 | 82,914 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,288 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,310 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,984 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,661 |
| Danube Countries | 0 | - | 4.97 | 71,122 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,825 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,586 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,584 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,490 |
| European Landlocked Countries | 0 | - | 4.99 | 145,809 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,280 |
| Countries with the Most Species | 0 | - | 4.99 | 95,272 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,425 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,215 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,384 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,981 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,608 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,990 |
| Countries in the Alps | 0 | - | 4.86 | 116,905 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,620 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,345 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,048 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,465 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,231 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,045 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,631 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,803 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,475 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,108 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,207 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,072 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,484 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,797 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,785 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,162 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,696 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,283 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,836 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,550 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,833 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,629 |
| Largest Countries By Category | 0 | - | 4.97 | 156,844 |
| Countries by Countries | 0 | - | 4.96 | 62,308 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,479 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,979 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,346 |
| Merged Country Flags | 0 | - | 4.88 | 106,071 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,849 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,161 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,101 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,816 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,720,854 |
| Merged Countries #2 | 0 | - | 4.96 | 98,515 |
| Merged Countries #6 | 0 | - | 4.91 | 72,755 |
| Merged Countries #7 | 0 | - | 4.92 | 82,006 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,764 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,502 |
| Geography by Picture - A | 0 | - | 4.39 | 60,064 |
| Geography by Picture - D | 0 | - | 4.15 | 45,511 |
| Geography by Picture - F | 0 | - | 4.31 | 50,841 |
| Geography by Picture - G | 0 | - | 4.38 | 47,806 |
| Geography by Picture - J | 0 | - | 4.16 | 38,344 |
| Geography by Picture - K | 0 | - | 4.28 | 33,027 |
| Geography by Picture - C | 0 | - | 4.31 | 56,924 |
| Geography by Picture - L | 0 | - | 4.37 | 58,777 |
| Geography by Picture - M | 0 | - | 4.14 | 40,353 |
| Geography by Picture - P | 0 | - | 4.24 | 42,312 |
| Geography by Picture - S | 0 | - | 4.38 | 46,926 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,596 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,251 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,465 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,558 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,662 |
| Longest International Borders | 0 | - | 4.99 | 263,734 |
| Countries with Three Borders | 0 | - | 4.96 | 36,214 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,623 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,714 |
