| All Country Flags of the World | 0 | - | 5.00 | 3,594,282 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,623 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,625 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,116 |
| Flags with Crescents | 0 | - | 4.98 | 167,280 |
| Country Flag Trivia | 0 | - | 4.81 | 55,781 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,243 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,339 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,734 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,935 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,358 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 113,882 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,469 |
| Flags that are Red & White Only | 0 | - | 4.97 | 149,475 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,273 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,226 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,416 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,400 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,072 |
| Country Flags with the Most Blue | 0 | - | 4.87 | 91,539 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,618 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,432 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,122 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,681 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,181 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,592 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,665 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,265 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,566 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,602 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,832 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,965 |
| Flags of North and South America | 0 | - | 4.99 | 365,505 |
| Flags to Languages | 0 | - | 4.95 | 172,333 |
| Former Flags | 0 | - | 4.97 | 106,529 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,534 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,136 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,655 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,417 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,654 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,506 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 111,972 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,531 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,363 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,313 |
| Flag Maths | 0 | - | 4.78 | 57,663 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,224 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,896 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,393 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,314 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,254 |
| World Coats of Arms | 0 | - | 4.99 | 63,785 |
| Country Flags with the Southern Cross | 0 | - | 4.78 | 61,281 |
| Similar Flags #1 | 0 | - | 4.74 | 128,964 |
| Similar Flags #2 | 0 | - | 4.74 | 136,230 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,225 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,631 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,656 |
| Emoji Flags | 0 | - | 4.35 | 43,787 |
| Countries by Road Signs | 0 | - | 4.98 | 52,977 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,948 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,947 |
| Select the World Flags | 0 | - | 4.27 | 37,360 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,204 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,516 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 70,987 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,638 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,766 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,650 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,189 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,298 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,936 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,331 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,694 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,057 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,497 |
| Pixelated World Map | 0 | - | 5.00 | 141,872 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,216 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,280 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,603 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,906 |
| Boundary Waters | 0 | - | 4.92 | 87,991 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,176 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,129 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,763 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,652 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,183 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,882 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,012 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,511 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,126 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,892 |
| Geography by Picture - B | 0 | - | 4.42 | 55,385 |
| Geography by Picture - H | 0 | - | 4.49 | 58,016 |
| Geography by Picture - N | 0 | - | 4.45 | 42,031 |
| Geography by Picture - R | 0 | - | 4.55 | 40,865 |
| Geography by Picture - T | 0 | - | 4.54 | 57,648 |
| Flags of Oceania | 0 | - | 5.00 | 254,609 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,640 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,355 |
| Pixelated Africa Map | 0 | - | 4.98 | 98,949 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,285 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,644 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,852,311 |
| Flags of WW1 | 0 | - | 4.60 | 37,869 |
| Landlocked Countries | 0 | - | 4.99 | 412,888 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,643 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,956 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,953 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,615 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,614 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,774 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,272 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,731 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,108 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,904 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,466 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,841 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,713 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,236 |
| Himalayan Countries | 0 | - | 4.95 | 135,056 |
| Andean Countries | 0 | - | 4.94 | 82,665 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,083 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,995 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,761 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,466 |
| Danube Countries | 0 | - | 4.97 | 71,003 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,637 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,456 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,293 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,197 |
| European Landlocked Countries | 0 | - | 4.99 | 145,669 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,053 |
| Countries with the Most Species | 0 | - | 4.99 | 95,187 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,195 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,174 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,334 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,908 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,511 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,868 |
| Countries in the Alps | 0 | - | 4.87 | 116,683 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,472 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,084 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,942 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,327 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,069 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,938 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,473 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,683 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,621 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,970 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,166 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,998 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,364 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,672 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,676 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,865 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,569 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,200 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,668 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,839 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,375 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,542 |
| Largest Countries By Category | 0 | - | 4.97 | 156,618 |
| Countries by Countries | 0 | - | 4.96 | 62,168 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,217 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,934 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,306 |
| Merged Country Flags | 0 | - | 4.88 | 105,920 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,392 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,006 |
| Colourful Countries of the World | 0 | - | 4.99 | 58,967 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,653 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,877 |
| Merged Countries #2 | 0 | - | 4.96 | 98,388 |
| Merged Countries #6 | 0 | - | 4.91 | 72,642 |
| Merged Countries #7 | 0 | - | 4.93 | 81,888 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,631 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,456 |
| Geography by Picture - A | 0 | - | 4.39 | 60,018 |
| Geography by Picture - D | 0 | - | 4.15 | 45,467 |
| Geography by Picture - F | 0 | - | 4.31 | 50,807 |
| Geography by Picture - G | 0 | - | 4.38 | 47,774 |
| Geography by Picture - J | 0 | - | 4.16 | 38,314 |
| Geography by Picture - K | 0 | - | 4.28 | 32,996 |
| Geography by Picture - C | 0 | - | 4.31 | 56,891 |
| Geography by Picture - L | 0 | - | 4.37 | 58,728 |
| Geography by Picture - M | 0 | - | 4.14 | 40,328 |
| Geography by Picture - P | 0 | - | 4.24 | 42,286 |
| Geography by Picture - S | 0 | - | 4.38 | 46,894 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,477 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,212 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,402 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,137 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,544 |
| Longest International Borders | 0 | - | 4.99 | 263,365 |
| Countries with Three Borders | 0 | - | 4.96 | 36,132 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,557 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,605 |
