| All Country Flags of the World | 0 | - | 5.00 | 3,720,863 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,151 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,854 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,891 |
| Flags with Crescents | 0 | - | 4.98 | 171,593 |
| Country Flag Trivia | 0 | - | 4.82 | 58,214 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,072 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,783 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,076 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,102 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,579 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,518 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,514 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,098 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,296 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,747 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,479 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,821 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,509 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,456 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,471 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,386 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,442 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,236 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,836 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,241 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,164 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,531 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,992 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,148 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,498 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,754 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,833 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,801 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,825 |
| Flags of North and South America | 0 | - | 4.99 | 377,620 |
| Flags to Languages | 0 | - | 4.95 | 174,639 |
| Former Flags | 0 | - | 4.97 | 108,735 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,280 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,099 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,076 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,263 |
| 20 Random Country Flags | 0 | - | 4.99 | 619,880 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,352 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,662 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,462 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,579 |
| Flag Maths | 0 | - | 4.61 | 57,857 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,979 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,236 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,318 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,109 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,674 |
| World Coats of Arms | 0 | - | 4.99 | 65,276 |
| Similar Flags #1 | 0 | - | 4.75 | 130,887 |
| Similar Flags #2 | 0 | - | 4.74 | 138,161 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,697 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,944 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,876 |
| Emoji Flags | 0 | - | 4.35 | 44,312 |
| Countries by Road Signs | 0 | - | 4.98 | 54,410 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,231 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,581 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,561 |
| Select the World Flags | 0 | - | 4.28 | 38,018 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,618 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,200 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,809 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,529 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,575 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,168 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,746 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,498 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,094 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,243 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,095 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,118 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,322 |
| Pixelated World Map | 0 | - | 5.00 | 144,199 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,541 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,754 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,275 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,447 |
| Boundary Waters | 0 | - | 4.92 | 88,815 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,436 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,783 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,465 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,027 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,051 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,554 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,451 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,827 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,417 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,724 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,247 |
| Geography by Picture - B | 0 | - | 4.42 | 55,821 |
| Geography by Picture - H | 0 | - | 4.50 | 58,414 |
| Geography by Picture - N | 0 | - | 4.45 | 42,378 |
| Geography by Picture - R | 0 | - | 4.56 | 41,174 |
| Geography by Picture - T | 0 | - | 4.54 | 58,025 |
| Flags of Oceania | 0 | - | 5.00 | 263,169 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,735 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,606 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,544 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,845 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,567 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,938,779 |
| Flags of WW1 | 0 | - | 4.60 | 38,741 |
| Landlocked Countries | 0 | - | 4.99 | 426,856 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 590,842 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,841 |
| Satellite Images #1 | 0 | - | 4.46 | 130,040 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,740 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,428 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,281 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,248 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,629 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,908 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,972 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,477 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,097 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,136 |
| World Capitals Quiz | 0 | - | 5.00 | 5,111,093 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,719 |
| Himalayan Countries | 0 | - | 4.93 | 140,638 |
| Andean Countries | 0 | - | 4.94 | 85,716 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,834 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,357 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,392 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,623 |
| Danube Countries | 0 | - | 4.97 | 72,510 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,730 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,930 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,350 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,807 |
| European Landlocked Countries | 0 | - | 4.99 | 147,699 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,463 |
| Countries with the Most Species | 0 | - | 4.99 | 103,621 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,568 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,801 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,933 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,899 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,649 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,097 |
| Countries in the Alps | 0 | - | 4.87 | 118,909 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,880 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,048 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,034 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,129 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,081 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,348 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,522 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,961 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,490 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,278 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,932 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,809 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,632 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,884 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,980 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,063 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,688 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,035 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,778 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,104 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,373 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,585 |
| Largest Countries By Category | 0 | - | 4.97 | 159,011 |
| Countries by Countries | 0 | - | 4.97 | 63,753 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,374 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,436 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,697 |
| Merged Country Flags | 0 | - | 4.88 | 107,445 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,278 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,504 |
| Colourful Countries of the World | 0 | - | 4.99 | 60,217 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,191 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,809,522 |
| Merged Countries #2 | 0 | - | 4.96 | 99,936 |
| Merged Countries #4 | 0 | - | 4.81 | 94,169 |
| Merged Countries #6 | 0 | - | 4.90 | 73,871 |
| Merged Countries #7 | 0 | - | 4.93 | 83,216 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,550 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,018 |
| Geography by Picture - A | 0 | - | 4.39 | 60,467 |
| Geography by Picture - D | 0 | - | 4.15 | 45,813 |
| Geography by Picture - F | 0 | - | 4.31 | 51,219 |
| Geography by Picture - G | 0 | - | 4.39 | 48,110 |
| Geography by Picture - J | 0 | - | 4.16 | 38,623 |
| Geography by Picture - K | 0 | - | 4.29 | 33,278 |
| Geography by Picture - C | 0 | - | 4.31 | 57,266 |
| Geography by Picture - L | 0 | - | 4.37 | 59,161 |
| Geography by Picture - M | 0 | - | 4.14 | 40,603 |
| Geography by Picture - P | 0 | - | 4.24 | 42,591 |
| Geography by Picture - S | 0 | - | 4.38 | 47,198 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,853 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,647 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,217 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,307 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,625 |
