| All Country Flags of the World | 0 | - | 5.00 | 3,723,819 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,643 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,150 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,073 |
| Flags with Crescents | 0 | - | 4.98 | 171,705 |
| Country Flag Trivia | 0 | - | 4.82 | 58,280 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,154 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,607 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,861 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,112 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,153 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,619 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,601 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,591 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,193 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,334 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,800 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,566 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,888 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,557 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,483 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,528 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,427 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,472 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,275 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,863 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,278 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,187 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,548 |
| Country Flags Slideshow | 0 | - | 4.91 | 48,011 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,179 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,530 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,782 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,867 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 32,840 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,853 |
| Flags of North and South America | 0 | - | 4.99 | 377,997 |
| Flags to Languages | 0 | - | 4.95 | 174,681 |
| Former Flags | 0 | - | 4.97 | 108,804 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,301 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,133 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,093 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,278 |
| 20 Random Country Flags | 0 | - | 4.99 | 620,235 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,386 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,673 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,523 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,647 |
| Flag Maths | 0 | - | 4.61 | 57,863 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 147,048 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,265 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,331 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,126 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,681 |
| World Coats of Arms | 0 | - | 4.99 | 65,313 |
| Similar Flags #1 | 0 | - | 4.75 | 130,938 |
| Similar Flags #2 | 0 | - | 4.74 | 138,214 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,756 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,976 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,944 |
| Emoji Flags | 0 | - | 4.35 | 44,324 |
| Countries by Road Signs | 0 | - | 4.98 | 54,439 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,271 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,596 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,647 |
| Select the World Flags | 0 | - | 4.28 | 38,032 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,645 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,221 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,830 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,545 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,589 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,181 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,754 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,539 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,115 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,254 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,142 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,991 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,752 |
| Pixelated World Map | 0 | - | 5.00 | 144,256 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,919 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,801 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,301 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,470 |
| Boundary Waters | 0 | - | 4.92 | 88,831 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,465 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,825 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,540 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,059 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,079 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,627 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,464 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,835 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,445 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,735 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,257 |
| Geography by Picture - B | 0 | - | 4.42 | 55,829 |
| Geography by Picture - H | 0 | - | 4.50 | 58,426 |
| Geography by Picture - N | 0 | - | 4.45 | 42,391 |
| Geography by Picture - R | 0 | - | 4.56 | 41,187 |
| Geography by Picture - T | 0 | - | 4.54 | 58,041 |
| Flags of Oceania | 0 | - | 5.00 | 263,396 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,822 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,639 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,575 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,871 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,598 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,962,966 |
| Flags of WW1 | 0 | - | 4.60 | 38,763 |
| Landlocked Countries | 0 | - | 4.99 | 427,180 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,676 |
| Satellite Images #1 | 0 | - | 4.46 | 130,066 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,749 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,442 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,291 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,252 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,658 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,911 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,987 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,507 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,153 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,182 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,178 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,878 |
| Himalayan Countries | 0 | - | 4.93 | 140,793 |
| Andean Countries | 0 | - | 4.94 | 85,780 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,905 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,470 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,454 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,678 |
| Danube Countries | 0 | - | 4.97 | 72,539 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,790 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,970 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,426 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,899 |
| European Landlocked Countries | 0 | - | 4.99 | 147,730 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,525 |
| Countries with the Most Species | 0 | - | 4.99 | 103,641 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,628 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,812 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,951 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,918 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,672 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,123 |
| Countries in the Alps | 0 | - | 4.87 | 118,959 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,969 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,110 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,052 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,165 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,119 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,384 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,580 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,985 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,508 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,307 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,950 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,825 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,664 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,917 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,015 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,131 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,726 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,392 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,830 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,262 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,472 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,607 |
| Largest Countries By Category | 0 | - | 4.97 | 159,076 |
| Countries by Countries | 0 | - | 4.97 | 63,796 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,424 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,445 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,704 |
| Merged Country Flags | 0 | - | 4.88 | 107,483 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,392 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,544 |
| Colourful Countries of the World | 0 | - | 4.99 | 60,240 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,220 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,811,822 |
| Merged Countries #2 | 0 | - | 4.96 | 99,960 |
| Merged Countries #4 | 0 | - | 4.81 | 94,183 |
| Merged Countries #6 | 0 | - | 4.90 | 73,892 |
| Merged Countries #7 | 0 | - | 4.93 | 83,232 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,572 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,023 |
| Geography by Picture - A | 0 | - | 4.39 | 60,482 |
| Geography by Picture - D | 0 | - | 4.15 | 45,823 |
| Geography by Picture - F | 0 | - | 4.31 | 51,227 |
| Geography by Picture - G | 0 | - | 4.39 | 48,119 |
| Geography by Picture - J | 0 | - | 4.16 | 38,631 |
| Geography by Picture - K | 0 | - | 4.29 | 33,288 |
| Geography by Picture - C | 0 | - | 4.31 | 57,278 |
| Geography by Picture - L | 0 | - | 4.37 | 59,171 |
| Geography by Picture - M | 0 | - | 4.14 | 40,615 |
| Geography by Picture - P | 0 | - | 4.24 | 42,598 |
| Geography by Picture - S | 0 | - | 4.38 | 47,210 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,881 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,653 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,247 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,386 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,648 |
