| All Country Flags of the World | 0 | - | 5.00 | 3,623,377 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,530,192 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,230 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,984 |
| Flags with Crescents | 0 | - | 4.98 | 168,210 |
| Country Flag Trivia | 0 | - | 4.81 | 56,257 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,820 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,775 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,367 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,732 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,304 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,672 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,046 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,516 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,699 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,384 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,194 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,134 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,993 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,983 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,777 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,029 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,114 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,882 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,589 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,067 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,440 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,828 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,976 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,959 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,266 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,455 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,584 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,191 |
| Flags of North and South America | 0 | - | 4.99 | 369,544 |
| Flags to Languages | 0 | - | 4.95 | 172,900 |
| Former Flags | 0 | - | 4.97 | 107,068 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,741 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,181 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,032 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,324 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,803 |
| 20 Random Country Flags | 0 | - | 4.99 | 607,577 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,285 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,843 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,854 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,866 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,817 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,142 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,568 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,505 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,357 |
| World Coats of Arms | 0 | - | 4.99 | 64,076 |
| Similar Flags #1 | 0 | - | 4.74 | 129,417 |
| Similar Flags #2 | 0 | - | 4.74 | 136,691 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,821 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,171 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,422 |
| Emoji Flags | 0 | - | 4.35 | 43,902 |
| Countries by Road Signs | 0 | - | 4.98 | 53,335 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,210 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,087 |
| Countries by Partial Flag Images #8 | 0 | - | 4.77 | 23,022 |
| Select the World Flags | 0 | - | 4.27 | 37,522 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,501 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,700 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,161 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,814 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,956 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,769 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,319 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,574 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,103 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,528 |
| Name a Valid Country Flag | 0 | - | 4.67 | 75,126 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,232,992 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,229 |
| Pixelated World Map | 0 | - | 5.00 | 142,789 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,038 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,662 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,980 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,039 |
| Boundary Waters | 0 | - | 4.92 | 88,175 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,925 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,566 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,698 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,054 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,965 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,535 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,961 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,132 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,696 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,224 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,975 |
| Geography by Picture - B | 0 | - | 4.42 | 55,481 |
| Geography by Picture - H | 0 | - | 4.50 | 58,097 |
| Geography by Picture - N | 0 | - | 4.45 | 42,095 |
| Geography by Picture - R | 0 | - | 4.56 | 40,922 |
| Geography by Picture - T | 0 | - | 4.54 | 57,733 |
| Flags of Oceania | 0 | - | 5.00 | 256,571 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,371 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,657 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,337 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,715 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,150 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,107,598 |
| Flags of WW1 | 0 | - | 4.60 | 38,110 |
| Landlocked Countries | 0 | - | 4.99 | 415,919 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 559,810 |
| Satellite Images #1 | 0 | - | 4.46 | 129,144 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,108 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,750 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,746 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,871 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,588 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,776 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,315 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,260 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,186 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,443 |
| World Capitals Quiz | 0 | - | 5.00 | 5,046,218 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,557 |
| Himalayan Countries | 0 | - | 4.95 | 136,190 |
| Andean Countries | 0 | - | 4.95 | 83,288 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,584 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,784 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,281 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,902 |
| Danube Countries | 0 | - | 4.97 | 71,322 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,090 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,777 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,994 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,952 |
| European Landlocked Countries | 0 | - | 4.99 | 146,032 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,645 |
| Countries with the Most Species | 0 | - | 4.99 | 95,540 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,779 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,292 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,467 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,107 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,752 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,126 |
| Countries in the Alps | 0 | - | 4.86 | 117,228 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,827 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,728 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,202 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,653 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,467 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,194 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,889 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,944 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,740 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,274 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,313 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,175 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,666 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,930 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,939 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,587 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,840 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,378 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,114 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,617 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,397 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,775 |
| Largest Countries By Category | 0 | - | 4.97 | 157,154 |
| Countries by Countries | 0 | - | 4.96 | 62,515 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,769 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,058 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,394 |
| Merged Country Flags | 0 | - | 4.88 | 106,266 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,499 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,349 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,273 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,026 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,735,413 |
| Merged Countries #2 | 0 | - | 4.96 | 98,653 |
| Merged Countries #6 | 0 | - | 4.90 | 72,909 |
| Merged Countries #7 | 0 | - | 4.93 | 82,146 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,957 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,600 |
| Geography by Picture - A | 0 | - | 4.39 | 60,113 |
| Geography by Picture - D | 0 | - | 4.15 | 45,548 |
| Geography by Picture - F | 0 | - | 4.31 | 50,880 |
| Geography by Picture - G | 0 | - | 4.38 | 47,852 |
| Geography by Picture - J | 0 | - | 4.16 | 38,372 |
| Geography by Picture - K | 0 | - | 4.29 | 33,046 |
| Geography by Picture - C | 0 | - | 4.31 | 56,976 |
| Geography by Picture - L | 0 | - | 4.37 | 58,829 |
| Geography by Picture - M | 0 | - | 4.14 | 40,372 |
| Geography by Picture - P | 0 | - | 4.24 | 42,342 |
| Geography by Picture - S | 0 | - | 4.38 | 46,957 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,769 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,308 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,581 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,059 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,806 |
| Longest International Borders | 0 | - | 4.99 | 264,219 |
| Countries with Three Borders | 0 | - | 4.96 | 36,314 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,740 |
