| All Country Flags of the World | 0 | - | 5.00 | 3,713,079 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,545,903 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,146 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,411 |
| Flags with Crescents | 0 | - | 4.98 | 171,330 |
| Country Flag Trivia | 0 | - | 4.81 | 58,016 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,886 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,427 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,590 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,937 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,979 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,487 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,335 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,321 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,887 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,185 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,598 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,310 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,639 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,385 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,330 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,340 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,264 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,337 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,129 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,735 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,132 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,090 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,491 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,923 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,069 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,409 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,649 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,733 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,690 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,790 |
| Flags of North and South America | 0 | - | 4.99 | 376,923 |
| Flags to Languages | 0 | - | 4.95 | 174,502 |
| Former Flags | 0 | - | 4.97 | 108,570 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,230 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,021 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,008 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,225 |
| 20 Random Country Flags | 0 | - | 4.99 | 618,814 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,259 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,589 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,347 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,425 |
| Flag Maths | 0 | - | 4.61 | 57,841 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,852 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,177 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,253 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,056 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,643 |
| World Coats of Arms | 0 | - | 4.99 | 65,136 |
| Similar Flags #1 | 0 | - | 4.75 | 130,770 |
| Similar Flags #2 | 0 | - | 4.74 | 138,065 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,564 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,853 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,708 |
| Emoji Flags | 0 | - | 4.35 | 44,287 |
| Countries by Road Signs | 0 | - | 4.98 | 54,344 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,109 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,529 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,344 |
| Select the World Flags | 0 | - | 4.28 | 37,992 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,545 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,164 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,774 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,479 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,528 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,123 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,698 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,401 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,058 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,212 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,006 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,257,846 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,203 |
| Pixelated World Map | 0 | - | 5.00 | 144,102 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,453 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,673 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,186 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,419 |
| Boundary Waters | 0 | - | 4.92 | 88,761 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,410 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,695 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,339 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,960 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,961 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,394 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,398 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,795 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,372 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,691 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,224 |
| Geography by Picture - B | 0 | - | 4.42 | 55,784 |
| Geography by Picture - H | 0 | - | 4.50 | 58,378 |
| Geography by Picture - N | 0 | - | 4.45 | 42,337 |
| Geography by Picture - R | 0 | - | 4.56 | 41,144 |
| Geography by Picture - T | 0 | - | 4.54 | 57,998 |
| Flags of Oceania | 0 | - | 5.00 | 262,660 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,568 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,450 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,445 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,772 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,465 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,873,452 |
| Flags of WW1 | 0 | - | 4.60 | 38,688 |
| Landlocked Countries | 0 | - | 4.99 | 425,764 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 588,162 |
| Satellite Images #1 | 0 | - | 4.46 | 129,973 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,670 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,277 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,217 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,197 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,576 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,893 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,922 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,391 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,973 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,996 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,632 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,215 |
| Himalayan Countries | 0 | - | 4.93 | 140,211 |
| Andean Countries | 0 | - | 4.94 | 85,428 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,579 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,969 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,142 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,417 |
| Danube Countries | 0 | - | 4.97 | 72,378 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,578 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,826 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,099 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,592 |
| European Landlocked Countries | 0 | - | 4.99 | 147,599 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,289 |
| Countries with the Most Species | 0 | - | 4.99 | 103,555 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,397 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,775 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,881 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,836 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,575 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,008 |
| Countries in the Alps | 0 | - | 4.87 | 118,764 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,613 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,843 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,957 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,019 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,942 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,244 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,388 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,856 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,415 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,173 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,863 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,738 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,552 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,778 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,884 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,820 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,604 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 69,270 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,658 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,684 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,121 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,498 |
| Largest Countries By Category | 0 | - | 4.97 | 158,854 |
| Countries by Countries | 0 | - | 4.96 | 63,638 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,251 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,400 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,668 |
| Merged Country Flags | 0 | - | 4.88 | 107,375 |
| All Countries by Population With a Map | 0 | - | 4.98 | 110,958 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,426 |
| Colourful Countries of the World | 0 | - | 4.99 | 60,146 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,100 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,804,007 |
| Merged Countries #2 | 0 | - | 4.96 | 99,878 |
| Merged Countries #4 | 0 | - | 4.81 | 94,120 |
| Merged Countries #6 | 0 | - | 4.90 | 73,806 |
| Merged Countries #7 | 0 | - | 4.93 | 83,147 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,451 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,983 |
| Geography by Picture - A | 0 | - | 4.39 | 60,434 |
| Geography by Picture - D | 0 | - | 4.15 | 45,783 |
| Geography by Picture - F | 0 | - | 4.31 | 51,170 |
| Geography by Picture - G | 0 | - | 4.39 | 48,074 |
| Geography by Picture - J | 0 | - | 4.16 | 38,593 |
| Geography by Picture - K | 0 | - | 4.29 | 33,247 |
| Geography by Picture - C | 0 | - | 4.31 | 57,235 |
| Geography by Picture - L | 0 | - | 4.37 | 59,135 |
| Geography by Picture - M | 0 | - | 4.14 | 40,578 |
| Geography by Picture - P | 0 | - | 4.24 | 42,564 |
| Geography by Picture - S | 0 | - | 4.38 | 47,178 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,796 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,614 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,167 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,073 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,569 |
