| All Country Flags of the World | 0 | - | 5.00 | 3,633,512 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,781 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,056 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 731,639 |
| Flags with Crescents | 0 | - | 4.98 | 168,555 |
| Country Flag Trivia | 0 | - | 4.81 | 56,498 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,080 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,989 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,643 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,890 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,772 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,436 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,903 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,227 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,765 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,853 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,659 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,395 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,399 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,127 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,106 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,944 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,154 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,241 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,007 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,707 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,187 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,509 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,909 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,073 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,062 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,379 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,575 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,697 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,253 |
| Flags of North and South America | 0 | - | 4.99 | 370,557 |
| Flags to Languages | 0 | - | 4.95 | 173,085 |
| Former Flags | 0 | - | 4.97 | 107,222 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,791 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,240 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,134 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,467 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,665 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,840 |
| 20 Random Country Flags | 0 | - | 4.99 | 608,512 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,392 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,912 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,040 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,042 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,450 |
| Flag Maths | 0 | - | 4.64 | 57,715 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,999 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,222 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,628 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,565 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,387 |
| World Coats of Arms | 0 | - | 4.99 | 64,167 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,009 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,313 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,657 |
| Similar Flags #1 | 0 | - | 4.74 | 129,557 |
| Similar Flags #2 | 0 | - | 4.74 | 136,852 |
| Emoji Flags | 0 | - | 4.35 | 43,945 |
| Countries by Road Signs | 0 | - | 4.98 | 53,462 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,295 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,126 |
| Countries by Partial Flag Images #8 | 0 | - | 4.74 | 23,666 |
| Select the World Flags | 0 | - | 4.27 | 37,585 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,586 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,739 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,263 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,208 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,877 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,004 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,800 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,361 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,675 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,148 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,586 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,235,646 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,516 |
| Pixelated World Map | 0 | - | 5.00 | 142,931 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,303 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,783 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,433 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,098 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,079 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,664 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,986 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,163 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,752 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,248 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,996 |
| Geography by Picture - B | 0 | - | 4.42 | 55,509 |
| Geography by Picture - H | 0 | - | 4.50 | 58,131 |
| Geography by Picture - N | 0 | - | 4.45 | 42,120 |
| Geography by Picture - R | 0 | - | 4.56 | 40,950 |
| Geography by Picture - T | 0 | - | 4.54 | 57,757 |
| Flags of Oceania | 0 | - | 5.00 | 257,210 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,575 |
| Flags of WW1 | 0 | - | 4.60 | 38,187 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,729 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,454 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,828 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,281 |
| Boundary Waters | 0 | - | 4.92 | 88,262 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,989 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,689 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,878 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,166 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,080 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,193,348 |
| Landlocked Countries | 0 | - | 4.99 | 417,031 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 562,903 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,293 |
| Satellite Images #1 | 0 | - | 4.46 | 129,200 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,156 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,793 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,798 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,893 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,688 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,788 |
| World Capitals Quiz | 0 | - | 5.00 | 5,052,811 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,743,413 |
| Merged Countries #2 | 0 | - | 4.96 | 98,761 |
| Merged Countries #6 | 0 | - | 4.90 | 72,991 |
| Merged Countries #7 | 0 | - | 4.93 | 82,255 |
| Geography by Picture - A | 0 | - | 4.39 | 60,145 |
| Geography by Picture - D | 0 | - | 4.15 | 45,568 |
| Geography by Picture - F | 0 | - | 4.31 | 50,904 |
| Geography by Picture - G | 0 | - | 4.38 | 47,874 |
| Geography by Picture - J | 0 | - | 4.16 | 38,391 |
| Geography by Picture - K | 0 | - | 4.29 | 33,065 |
| Geography by Picture - C | 0 | - | 4.31 | 56,997 |
| Geography by Picture - L | 0 | - | 4.37 | 58,857 |
| Geography by Picture - M | 0 | - | 4.14 | 40,394 |
| Geography by Picture - P | 0 | - | 4.24 | 42,366 |
| Geography by Picture - S | 0 | - | 4.38 | 46,980 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,261 |
| Islands by Picture | 0 | - | 4.29 | 106,431 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,400 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,405 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,338 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,608 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,292 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,438 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,785 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,979 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,052 |
| Island Countries | 0 | - | 4.99 | 708,979 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,104 |
| Himalayan Countries | 0 | - | 4.95 | 136,667 |
| Andean Countries | 0 | - | 4.95 | 83,567 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,821 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,106 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,490 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,084 |
| Danube Countries | 0 | - | 4.97 | 71,468 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,279 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,881 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,239 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,237 |
| European Landlocked Countries | 0 | - | 4.99 | 146,166 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,827 |
| Countries with the Most Species | 0 | - | 4.99 | 102,230 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,958 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,348 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,528 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,190 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,839 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,218 |
| Countries in the Alps | 0 | - | 4.86 | 117,392 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,937 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,996 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,282 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,779 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,870 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,292 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,034 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,018 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,844 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,383 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,384 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,221 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,762 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,030 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,035 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,791 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,919 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,452 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,283 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,227 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,679 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,852 |
| Largest Countries By Category | 0 | - | 4.97 | 157,325 |
| Countries by Countries | 0 | - | 4.96 | 62,635 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,924 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,094 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,415 |
| Merged Country Flags | 0 | - | 4.88 | 106,383 |
