| All Country Flags of the World | 0 | - | 5.00 | 3,716,767 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,458 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,462 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,623 |
| Flags with Crescents | 0 | - | 4.98 | 171,445 |
| Country Flag Trivia | 0 | - | 4.82 | 58,111 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,967 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,491 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,672 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,993 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,036 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,523 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,419 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,406 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,981 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,234 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,668 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,388 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,731 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,456 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,388 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,402 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,326 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,389 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,177 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,772 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,196 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,123 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,511 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,954 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,102 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,444 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,694 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,772 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,736 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,802 |
| Flags of North and South America | 0 | - | 4.99 | 377,298 |
| Flags to Languages | 0 | - | 4.95 | 174,557 |
| Former Flags | 0 | - | 4.97 | 108,643 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,255 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,057 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,033 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,238 |
| 20 Random Country Flags | 0 | - | 4.99 | 619,336 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,297 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,625 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,409 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,484 |
| Flag Maths | 0 | - | 4.61 | 57,854 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,901 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,202 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,280 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,074 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,652 |
| World Coats of Arms | 0 | - | 4.99 | 65,198 |
| Similar Flags #1 | 0 | - | 4.75 | 130,833 |
| Similar Flags #2 | 0 | - | 4.74 | 138,106 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,625 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,891 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,772 |
| Emoji Flags | 0 | - | 4.35 | 44,298 |
| Countries by Road Signs | 0 | - | 4.98 | 54,377 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,152 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,555 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,440 |
| Select the World Flags | 0 | - | 4.28 | 38,001 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,581 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,181 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,794 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,506 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,548 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,141 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,716 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,451 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,076 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,228 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,038 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,928 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,744 |
| Pixelated World Map | 0 | - | 5.00 | 144,136 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,018 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,714 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,235 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,434 |
| Boundary Waters | 0 | - | 4.92 | 88,784 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,426 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,736 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,389 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,994 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,005 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,462 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,424 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,812 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,396 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,707 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,237 |
| Geography by Picture - B | 0 | - | 4.42 | 55,786 |
| Geography by Picture - H | 0 | - | 4.50 | 58,388 |
| Geography by Picture - N | 0 | - | 4.45 | 42,350 |
| Geography by Picture - R | 0 | - | 4.56 | 41,155 |
| Geography by Picture - T | 0 | - | 4.54 | 58,010 |
| Flags of Oceania | 0 | - | 5.00 | 262,912 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,650 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,485 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,482 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,800 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,506 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,905,616 |
| Flags of WW1 | 0 | - | 4.60 | 38,720 |
| Landlocked Countries | 0 | - | 4.99 | 426,256 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,449 |
| Satellite Images #1 | 0 | - | 4.46 | 130,019 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,714 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,412 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,261 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,236 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,600 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,899 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,942 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,430 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,040 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,056 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,303 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,435 |
| Himalayan Countries | 0 | - | 4.93 | 140,394 |
| Andean Countries | 0 | - | 4.94 | 85,551 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,700 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,138 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,267 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,503 |
| Danube Countries | 0 | - | 4.97 | 72,439 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,653 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,877 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,216 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,688 |
| European Landlocked Countries | 0 | - | 4.99 | 147,642 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,357 |
| Countries with the Most Species | 0 | - | 4.99 | 103,591 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,459 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,786 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,899 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,865 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,599 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,046 |
| Countries in the Alps | 0 | - | 4.87 | 118,828 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,721 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,948 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,989 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,062 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,998 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,291 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,449 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,896 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,449 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,214 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,903 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,762 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,586 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,826 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,920 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,930 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,641 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,804 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,716 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,861 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,237 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,538 |
| Largest Countries By Category | 0 | - | 4.97 | 158,913 |
| Countries by Countries | 0 | - | 4.96 | 63,675 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,302 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,417 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,680 |
| Merged Country Flags | 0 | - | 4.88 | 107,403 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,100 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,456 |
| Colourful Countries of the World | 0 | - | 4.99 | 60,178 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,130 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,661 |
| Merged Countries #2 | 0 | - | 4.96 | 99,899 |
| Merged Countries #4 | 0 | - | 4.81 | 94,142 |
| Merged Countries #6 | 0 | - | 4.90 | 73,832 |
| Merged Countries #7 | 0 | - | 4.93 | 83,170 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,496 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,993 |
| Geography by Picture - A | 0 | - | 4.39 | 60,442 |
| Geography by Picture - D | 0 | - | 4.15 | 45,792 |
| Geography by Picture - F | 0 | - | 4.31 | 51,187 |
| Geography by Picture - G | 0 | - | 4.39 | 48,086 |
| Geography by Picture - J | 0 | - | 4.16 | 38,603 |
| Geography by Picture - K | 0 | - | 4.29 | 33,254 |
| Geography by Picture - C | 0 | - | 4.31 | 57,243 |
| Geography by Picture - L | 0 | - | 4.37 | 59,147 |
| Geography by Picture - M | 0 | - | 4.14 | 40,589 |
| Geography by Picture - P | 0 | - | 4.24 | 42,575 |
| Geography by Picture - S | 0 | - | 4.38 | 47,187 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,824 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,624 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,186 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,181 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,591 |
