| All Country Flags of the World | 0 | - | 5.00 | 3,610,510 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,839 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,116 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,170 |
| Flags with Crescents | 0 | - | 4.98 | 167,828 |
| Country Flag Trivia | 0 | - | 4.81 | 56,060 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,577 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,571 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,082 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,148 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,244 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,668 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,193 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,537 |
| Flags that are Red & White Only | 0 | - | 4.97 | 162,636 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,899 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,639 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,803 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,807 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,541 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,848 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,938 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,702 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,424 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,923 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,344 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,747 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,854 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,725 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,000 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,158 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,326 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,102 |
| Flags of North and South America | 0 | - | 4.99 | 368,210 |
| Flags to Languages | 0 | - | 4.95 | 172,653 |
| Former Flags | 0 | - | 4.97 | 106,854 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,675 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,167 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,883 |
| Countries by Partial Flag Images #7 | 0 | - | 4.90 | 31,033 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,745 |
| 20 Random Country Flags | 0 | - | 4.99 | 605,662 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,155 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,710 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,651 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,612 |
| Flag Maths | 0 | - | 4.78 | 57,689 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,541 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,034 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,488 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,420 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,305 |
| World Coats of Arms | 0 | - | 4.99 | 63,949 |
| Similar Flags #1 | 0 | - | 4.74 | 129,241 |
| Similar Flags #2 | 0 | - | 4.74 | 136,495 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,522 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,942 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,091 |
| Emoji Flags | 0 | - | 4.35 | 43,848 |
| Countries by Road Signs | 0 | - | 4.98 | 53,202 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,108 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,026 |
| Countries by Partial Flag Images #8 | 0 | - | 4.80 | 20,419 |
| Select the World Flags | 0 | - | 4.27 | 37,436 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,377 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,623 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,095 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,728 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,874 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,723 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,255 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,451 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,024 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,442 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,923 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,042 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,597 |
| Pixelated World Map | 0 | - | 5.00 | 142,561 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,338 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,493 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,799 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,976 |
| Boundary Waters | 0 | - | 4.92 | 88,088 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,855 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,399 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,461 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,921 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,825 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,365 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,932 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,069 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,609 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,179 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,936 |
| Geography by Picture - B | 0 | - | 4.42 | 55,444 |
| Geography by Picture - H | 0 | - | 4.50 | 58,071 |
| Geography by Picture - N | 0 | - | 4.45 | 42,066 |
| Geography by Picture - R | 0 | - | 4.55 | 40,894 |
| Geography by Picture - T | 0 | - | 4.54 | 57,703 |
| Flags of Oceania | 0 | - | 5.00 | 255,797 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,050 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,522 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,186 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,534 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,925 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,991,629 |
| Flags of WW1 | 0 | - | 4.60 | 38,010 |
| Landlocked Countries | 0 | - | 4.99 | 414,477 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 555,462 |
| Satellite Images #1 | 0 | - | 4.46 | 129,062 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,029 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,683 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,685 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,831 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,443 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,744 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,227 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,097 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,974 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,201 |
| World Capitals Quiz | 0 | - | 5.00 | 5,037,444 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,952 |
| Himalayan Countries | 0 | - | 4.95 | 135,658 |
| Andean Countries | 0 | - | 4.94 | 83,006 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,359 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,415 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,053 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,724 |
| Danube Countries | 0 | - | 4.97 | 71,162 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,885 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,626 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,676 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,580 |
| European Landlocked Countries | 0 | - | 4.99 | 145,871 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,346 |
| Countries with the Most Species | 0 | - | 4.99 | 95,296 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,500 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,231 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,401 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,009 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,649 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,016 |
| Countries in the Alps | 0 | - | 4.86 | 116,960 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,668 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,431 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,089 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,503 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,281 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,078 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,680 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,830 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,572 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,136 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,229 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,094 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,521 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,820 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,823 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,261 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,726 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,304 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,896 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,777 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,958 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,678 |
| Largest Countries By Category | 0 | - | 4.97 | 156,895 |
| Countries by Countries | 0 | - | 4.96 | 62,349 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,535 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,996 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,355 |
| Merged Country Flags | 0 | - | 4.88 | 106,103 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,004 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,201 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,129 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,847 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,723,905 |
| Merged Countries #2 | 0 | - | 4.96 | 98,534 |
| Merged Countries #6 | 0 | - | 4.90 | 72,786 |
| Merged Countries #7 | 0 | - | 4.92 | 82,034 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,799 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,518 |
| Geography by Picture - A | 0 | - | 4.39 | 60,068 |
| Geography by Picture - D | 0 | - | 4.15 | 45,519 |
| Geography by Picture - F | 0 | - | 4.31 | 50,849 |
| Geography by Picture - G | 0 | - | 4.38 | 47,817 |
| Geography by Picture - J | 0 | - | 4.16 | 38,350 |
| Geography by Picture - K | 0 | - | 4.29 | 33,032 |
| Geography by Picture - C | 0 | - | 4.31 | 56,936 |
| Geography by Picture - L | 0 | - | 4.37 | 58,786 |
| Geography by Picture - M | 0 | - | 4.14 | 40,358 |
| Geography by Picture - P | 0 | - | 4.24 | 42,318 |
| Geography by Picture - S | 0 | - | 4.38 | 46,932 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,617 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,259 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,494 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,671 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,692 |
| Longest International Borders | 0 | - | 4.99 | 263,963 |
| Countries with Three Borders | 0 | - | 4.96 | 36,245 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,645 |
