| All Country Flags of the World | 0 | - | 5.00 | 3,731,026 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,548,813 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,802 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,497 |
| Flags with Crescents | 0 | - | 4.98 | 171,923 |
| Country Flag Trivia | 0 | - | 4.82 | 58,413 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,301 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,735 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 89,037 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,194 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,247 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,708 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,784 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,774 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,377 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,443 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,930 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,748 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 78,054 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,651 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,595 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,657 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,532 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,582 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,384 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,969 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,382 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,243 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,597 |
| Country Flags Slideshow | 0 | - | 4.91 | 48,071 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,259 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,627 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,880 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,953 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 32,941 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,904 |
| Flags of North and South America | 0 | - | 4.99 | 378,643 |
| Flags to Languages | 0 | - | 4.95 | 174,929 |
| Former Flags | 0 | - | 4.97 | 108,916 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,339 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,203 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,159 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,964 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,305 |
| 20 Random Country Flags | 0 | - | 4.99 | 621,268 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,465 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,734 |
| Flags of the Mediterranean | 0 | - | 4.95 | 149,626 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,823 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,585 |
| Flag Maths | 0 | - | 4.61 | 57,873 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 147,172 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,319 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,369 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,162 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,707 |
| World Coats of Arms | 0 | - | 4.99 | 65,399 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,904 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 55,066 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 173,119 |
| Similar Flags #1 | 0 | - | 4.75 | 131,030 |
| Similar Flags #2 | 0 | - | 4.74 | 138,314 |
| Emoji Flags | 0 | - | 4.35 | 44,351 |
| Countries by Road Signs | 0 | - | 4.98 | 54,509 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,337 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,632 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,847 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,715 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,254 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,247 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,868 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,586 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,627 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,213 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,783 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,618 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,149 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,302 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,958 |
| Flags of Asia Quiz | 0 | - | 4.99 | 622,651 |
| Pixelated World Map | 0 | - | 5.00 | 144,804 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,809 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,890 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 44,003 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,406 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,495 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,783 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,498 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,860 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,485 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,769 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,274 |
| Places by Country - Tile Select | 0 | - | 4.32 | 14,181 |
| Geography by Picture - B | 0 | - | 4.42 | 55,850 |
| Geography by Picture - H | 0 | - | 4.50 | 58,453 |
| Geography by Picture - N | 0 | - | 4.45 | 42,416 |
| Geography by Picture - R | 0 | - | 4.56 | 41,212 |
| Geography by Picture - T | 0 | - | 4.54 | 58,070 |
| Flags of Oceania | 0 | - | 5.00 | 263,788 |
| Three Band Flags of Europe | 0 | - | 4.98 | 195,001 |
| Flags of WW1 | 0 | - | 4.60 | 38,806 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,737 |
| Places by City - Tile Select | 0 | - | 4.48 | 19,450 |
| Pixelated Africa Map | 0 | - | 4.98 | 101,076 |
| Pixelated Asia Map | 0 | - | 4.91 | 73,996 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,742 |
| Boundary Waters | 0 | - | 4.92 | 88,878 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,494 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,922 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,661 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,122 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,132 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,021,537 |
| Landlocked Countries | 0 | - | 4.99 | 427,899 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 593,708 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,900 |
| Satellite Images #1 | 0 | - | 4.46 | 130,160 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 110,012 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,508 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,346 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,302 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,736 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,920 |
| World Capitals Quiz | 0 | - | 5.00 | 5,118,347 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,816,986 |
| Merged Countries #2 | 0 | - | 4.96 | 100,032 |
| Merged Countries #4 | 0 | - | 4.81 | 94,241 |
| Merged Countries #6 | 0 | - | 4.90 | 73,951 |
| Merged Countries #7 | 0 | - | 4.93 | 83,301 |
| Geography by Picture - A | 0 | - | 4.39 | 60,510 |
| Geography by Picture - D | 0 | - | 4.15 | 45,837 |
| Geography by Picture - F | 0 | - | 4.31 | 51,250 |
| Geography by Picture - G | 0 | - | 4.39 | 48,143 |
| Geography by Picture - J | 0 | - | 4.16 | 38,650 |
| Geography by Picture - K | 0 | - | 4.29 | 33,308 |
| Geography by Picture - C | 0 | - | 4.31 | 57,304 |
| Geography by Picture - L | 0 | - | 4.37 | 59,203 |
| Geography by Picture - M | 0 | - | 4.14 | 40,642 |
| Geography by Picture - P | 0 | - | 4.24 | 42,624 |
| Geography by Picture - S | 0 | - | 4.38 | 47,231 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,572 |
| Islands by Picture | 0 | - | 4.28 | 108,072 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,030 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,595 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,259 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,291 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,202 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,909 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,973 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,234 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,752 |
| Island Countries | 0 | - | 4.99 | 713,306 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,205 |
| Himalayan Countries | 0 | - | 4.93 | 141,088 |
| Andean Countries | 0 | - | 4.94 | 85,940 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,040 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,688 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,589 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,785 |
| Danube Countries | 0 | - | 4.97 | 72,628 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,899 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,038 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,582 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,059 |
| European Landlocked Countries | 0 | - | 4.99 | 147,843 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,637 |
| Countries with the Most Species | 0 | - | 4.99 | 103,683 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,745 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,840 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,985 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,972 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,722 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,205 |
| Countries in the Alps | 0 | - | 4.87 | 119,076 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,171 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,286 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,103 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,236 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,213 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,437 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,660 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,050 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,551 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,365 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,987 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,860 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,722 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,981 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,080 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,310 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,775 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,893 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,937 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,653 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,748 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,655 |
| Largest Countries By Category | 0 | - | 4.97 | 159,217 |
| Countries by Countries | 0 | - | 4.97 | 63,872 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,554 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,465 |
