| All Country Flags of the World | 0 | - | 5.00 | 3,704,981 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,544,279 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,404 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,935 |
| Flags with Crescents | 0 | - | 4.98 | 171,088 |
| Country Flag Trivia | 0 | - | 4.81 | 57,847 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,717 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,274 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,385 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,815 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,852 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,382 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,109 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,129 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,674 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,065 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,421 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,138 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,429 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,270 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,207 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,207 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,165 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,240 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,022 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,637 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,061 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,022 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,429 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,841 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,979 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,323 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,549 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,627 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,579 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,749 |
| Flags of North and South America | 0 | - | 4.99 | 376,270 |
| Flags to Languages | 0 | - | 4.95 | 174,367 |
| Former Flags | 0 | - | 4.97 | 108,405 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,192 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,949 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,929 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,184 |
| 20 Random Country Flags | 0 | - | 4.99 | 617,823 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,177 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,507 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,201 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,288 |
| Flag Maths | 0 | - | 4.61 | 57,824 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,689 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,100 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,210 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,008 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,613 |
| World Coats of Arms | 0 | - | 4.99 | 65,034 |
| Similar Flags #1 | 0 | - | 4.75 | 130,645 |
| Similar Flags #2 | 0 | - | 4.74 | 137,946 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,387 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,742 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,562 |
| Emoji Flags | 0 | - | 4.35 | 44,259 |
| Countries by Road Signs | 0 | - | 4.98 | 54,278 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,001 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,466 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,135 |
| Select the World Flags | 0 | - | 4.28 | 37,946 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,442 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,114 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,722 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,434 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,481 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,092 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,675 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,273 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,028 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,172 |
| Name a Valid Country Flag | 0 | - | 4.70 | 76,835 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,255,297 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,929 |
| Pixelated World Map | 0 | - | 5.00 | 143,977 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,429 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,603 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,094 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,379 |
| Boundary Waters | 0 | - | 4.92 | 88,718 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,372 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,589 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,201 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,861 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,866 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,210 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,356 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,775 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,312 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,656 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,207 |
| Geography by Picture - B | 0 | - | 4.42 | 55,749 |
| Geography by Picture - H | 0 | - | 4.50 | 58,353 |
| Geography by Picture - N | 0 | - | 4.45 | 42,321 |
| Geography by Picture - R | 0 | - | 4.56 | 41,125 |
| Geography by Picture - T | 0 | - | 4.54 | 57,971 |
| Flags of Oceania | 0 | - | 5.00 | 262,156 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,358 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,374 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,360 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,686 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,356 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,799,301 |
| Flags of WW1 | 0 | - | 4.60 | 38,635 |
| Landlocked Countries | 0 | - | 4.99 | 424,739 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 585,685 |
| Satellite Images #1 | 0 | - | 4.47 | 129,911 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,606 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,160 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,180 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,170 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,485 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,887 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,871 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,307 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,837 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,869 |
| World Capitals Quiz | 0 | - | 5.00 | 5,100,319 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,735 |
| Himalayan Countries | 0 | - | 4.93 | 139,850 |
| Andean Countries | 0 | - | 4.94 | 85,223 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,395 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,707 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,960 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,265 |
| Danube Countries | 0 | - | 4.97 | 72,291 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,440 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,728 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,901 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,399 |
| European Landlocked Countries | 0 | - | 4.99 | 147,481 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,124 |
| Countries with the Most Species | 0 | - | 4.99 | 103,503 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,270 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,719 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,829 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,766 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,499 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,923 |
| Countries in the Alps | 0 | - | 4.87 | 118,627 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,388 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,644 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,890 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,917 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,843 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,153 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,280 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,787 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,354 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,085 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,803 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,674 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,466 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,704 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,795 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,567 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,536 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,603 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,518 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,282 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,900 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,445 |
| Largest Countries By Category | 0 | - | 4.97 | 158,695 |
| Countries by Countries | 0 | - | 4.96 | 63,534 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,134 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,369 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,645 |
| Merged Country Flags | 0 | - | 4.88 | 107,285 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,639 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,293 |
| Colourful Countries of the World | 0 | - | 4.99 | 60,080 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,005 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,797,760 |
| Merged Countries #2 | 0 | - | 4.96 | 99,806 |
| Merged Countries #6 | 0 | - | 4.90 | 73,744 |
| Merged Countries #7 | 0 | - | 4.93 | 83,081 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,370 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,952 |
| Geography by Picture - A | 0 | - | 4.39 | 60,403 |
| Geography by Picture - D | 0 | - | 4.15 | 45,766 |
| Geography by Picture - F | 0 | - | 4.31 | 51,146 |
| Geography by Picture - G | 0 | - | 4.39 | 48,059 |
| Geography by Picture - J | 0 | - | 4.16 | 38,571 |
| Geography by Picture - K | 0 | - | 4.29 | 33,229 |
| Geography by Picture - C | 0 | - | 4.31 | 57,206 |
| Geography by Picture - L | 0 | - | 4.37 | 59,105 |
| Geography by Picture - M | 0 | - | 4.14 | 40,561 |
| Geography by Picture - P | 0 | - | 4.24 | 42,542 |
| Geography by Picture - S | 0 | - | 4.38 | 47,159 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,731 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,597 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,121 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,817 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,497 |
| Longest International Borders | 0 | - | 4.99 | 265,672 |
