| All Country Flags of the World | 0 | - | 5.00 | 3,630,184 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,218 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,778 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,445 |
| Flags with Crescents | 0 | - | 4.98 | 168,440 |
| Country Flag Trivia | 0 | - | 4.81 | 56,404 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,981 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,917 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,534 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,836 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,380 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,819 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,159 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,675 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,792 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,568 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,316 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,311 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,073 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,051 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,882 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,103 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,195 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,960 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,655 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,144 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,484 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,872 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,038 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,027 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,339 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,534 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,668 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,230 |
| Flags of North and South America | 0 | - | 4.99 | 370,165 |
| Flags to Languages | 0 | - | 4.95 | 173,012 |
| Former Flags | 0 | - | 4.97 | 107,173 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,775 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,200 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,096 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,411 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,824 |
| 20 Random Country Flags | 0 | - | 4.99 | 608,134 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,348 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,883 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,970 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,983 |
| Flag Maths | 0 | - | 4.64 | 57,706 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,920 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,186 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,604 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,537 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,376 |
| World Coats of Arms | 0 | - | 4.99 | 64,135 |
| Similar Flags #1 | 0 | - | 4.74 | 129,500 |
| Similar Flags #2 | 0 | - | 4.74 | 136,789 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,943 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,258 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,559 |
| Emoji Flags | 0 | - | 4.35 | 43,926 |
| Countries by Road Signs | 0 | - | 4.98 | 53,415 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,247 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,100 |
| Countries by Partial Flag Images #8 | 0 | - | 4.74 | 23,493 |
| Select the World Flags | 0 | - | 4.27 | 37,563 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,558 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,725 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,190 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,851 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,991 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,788 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,343 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,636 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,127 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,559 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,204 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,634 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,110 |
| Pixelated World Map | 0 | - | 5.00 | 142,880 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,907 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,737 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,056 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,067 |
| Boundary Waters | 0 | - | 4.92 | 88,232 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,968 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,652 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,810 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,118 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,036 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,620 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,975 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,152 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,723 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,240 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,984 |
| Geography by Picture - B | 0 | - | 4.42 | 55,500 |
| Geography by Picture - H | 0 | - | 4.50 | 58,116 |
| Geography by Picture - N | 0 | - | 4.45 | 42,114 |
| Geography by Picture - R | 0 | - | 4.56 | 40,937 |
| Geography by Picture - T | 0 | - | 4.54 | 57,751 |
| Flags of Oceania | 0 | - | 5.00 | 256,994 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,499 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,702 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,410 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,782 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,235 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,164,373 |
| Flags of WW1 | 0 | - | 4.60 | 38,162 |
| Landlocked Countries | 0 | - | 4.99 | 416,663 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 561,946 |
| Satellite Images #1 | 0 | - | 4.46 | 129,173 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,133 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,775 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,774 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,884 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,648 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,784 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,369 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,344 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,280 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,535 |
| World Capitals Quiz | 0 | - | 5.00 | 5,050,612 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,940 |
| Himalayan Countries | 0 | - | 4.95 | 136,503 |
| Andean Countries | 0 | - | 4.95 | 83,492 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,754 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,006 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,425 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,029 |
| Danube Countries | 0 | - | 4.97 | 71,431 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,217 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,850 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,156 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,125 |
| European Landlocked Countries | 0 | - | 4.99 | 146,130 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,763 |
| Countries with the Most Species | 0 | - | 4.99 | 101,591 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,898 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,329 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,510 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,160 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,809 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,191 |
| Countries in the Alps | 0 | - | 4.86 | 117,326 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,903 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,896 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,253 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,741 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,821 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,255 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,986 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,994 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,805 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,330 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,366 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,203 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,730 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,996 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,004 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,715 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,895 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,430 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,248 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,011 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,569 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,829 |
| Largest Countries By Category | 0 | - | 4.97 | 157,255 |
| Countries by Countries | 0 | - | 4.96 | 62,592 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,872 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,080 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,409 |
| Merged Country Flags | 0 | - | 4.88 | 106,326 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,746 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,396 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,320 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,085 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,627 |
| Merged Countries #2 | 0 | - | 4.96 | 98,717 |
| Merged Countries #6 | 0 | - | 4.90 | 72,955 |
| Merged Countries #7 | 0 | - | 4.93 | 82,223 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,067 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,637 |
| Geography by Picture - A | 0 | - | 4.39 | 60,130 |
| Geography by Picture - D | 0 | - | 4.15 | 45,558 |
| Geography by Picture - F | 0 | - | 4.31 | 50,893 |
| Geography by Picture - G | 0 | - | 4.38 | 47,866 |
| Geography by Picture - J | 0 | - | 4.16 | 38,385 |
| Geography by Picture - K | 0 | - | 4.29 | 33,060 |
| Geography by Picture - C | 0 | - | 4.31 | 56,987 |
| Geography by Picture - L | 0 | - | 4.37 | 58,849 |
| Geography by Picture - M | 0 | - | 4.14 | 40,387 |
| Geography by Picture - P | 0 | - | 4.24 | 42,357 |
| Geography by Picture - S | 0 | - | 4.38 | 46,968 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,933 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,324 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,615 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,251 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,846 |
| Longest International Borders | 0 | - | 4.99 | 264,301 |
| Countries with Three Borders | 0 | - | 4.96 | 36,345 |
