| All Country Flags of the World | 0 | - | 5.00 | 3,631,164 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,385 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,859 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,515 |
| Flags with Crescents | 0 | - | 4.98 | 168,491 |
| Country Flag Trivia | 0 | - | 4.81 | 56,440 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,015 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,940 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,573 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,857 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,405 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,840 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,176 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,695 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,814 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,593 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,340 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,335 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,084 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,066 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,899 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,121 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,211 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,971 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,669 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,156 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,493 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,885 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,048 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,033 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,352 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,547 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,674 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,237 |
| Flags of North and South America | 0 | - | 4.99 | 370,251 |
| Flags to Languages | 0 | - | 4.95 | 173,034 |
| Former Flags | 0 | - | 4.97 | 107,187 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,780 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,211 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,105 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,422 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,829 |
| 20 Random Country Flags | 0 | - | 4.99 | 608,230 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,366 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,894 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,992 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,004 |
| Flag Maths | 0 | - | 4.64 | 57,709 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,945 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,199 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,613 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,552 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,379 |
| World Coats of Arms | 0 | - | 4.99 | 64,146 |
| Similar Flags #1 | 0 | - | 4.74 | 129,521 |
| Similar Flags #2 | 0 | - | 4.74 | 136,810 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,961 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,267 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,599 |
| Emoji Flags | 0 | - | 4.35 | 43,933 |
| Countries by Road Signs | 0 | - | 4.98 | 53,429 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,261 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,109 |
| Countries by Partial Flag Images #8 | 0 | - | 4.74 | 23,544 |
| Select the World Flags | 0 | - | 4.27 | 37,575 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,570 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,730 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,197 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,862 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,996 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,792 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,348 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,653 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,135 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,569 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,222 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,911 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,237 |
| Pixelated World Map | 0 | - | 5.00 | 142,899 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,031 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,759 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,070 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,073 |
| Boundary Waters | 0 | - | 4.92 | 88,237 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,972 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,664 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,826 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,133 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,048 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,634 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,978 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,156 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,733 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,240 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,992 |
| Geography by Picture - B | 0 | - | 4.42 | 55,505 |
| Geography by Picture - H | 0 | - | 4.50 | 58,121 |
| Geography by Picture - N | 0 | - | 4.45 | 42,115 |
| Geography by Picture - R | 0 | - | 4.56 | 40,942 |
| Geography by Picture - T | 0 | - | 4.54 | 57,753 |
| Flags of Oceania | 0 | - | 5.00 | 257,049 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,520 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,712 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,426 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,798 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,255 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,173,265 |
| Flags of WW1 | 0 | - | 4.60 | 38,173 |
| Landlocked Countries | 0 | - | 4.99 | 416,786 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 562,220 |
| Satellite Images #1 | 0 | - | 4.46 | 129,183 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,144 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,783 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,783 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,889 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,661 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,784 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,379 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,356 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,304 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,555 |
| World Capitals Quiz | 0 | - | 5.00 | 5,051,375 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,995 |
| Himalayan Countries | 0 | - | 4.95 | 136,551 |
| Andean Countries | 0 | - | 4.95 | 83,513 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,776 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,043 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,446 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,041 |
| Danube Countries | 0 | - | 4.97 | 71,441 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,237 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,857 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,176 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,163 |
| European Landlocked Countries | 0 | - | 4.99 | 146,139 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,791 |
| Countries with the Most Species | 0 | - | 4.99 | 101,858 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,917 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,338 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,517 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,167 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,817 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,201 |
| Countries in the Alps | 0 | - | 4.86 | 117,347 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,917 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,932 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,261 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,754 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,836 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,268 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,000 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,000 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,816 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,342 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,371 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,207 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,737 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,009 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,018 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,742 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,906 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,436 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,265 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,066 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,604 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,839 |
| Largest Countries By Category | 0 | - | 4.97 | 157,283 |
| Countries by Countries | 0 | - | 4.96 | 62,599 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,891 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,082 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,409 |
| Merged Country Flags | 0 | - | 4.88 | 106,350 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,780 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,406 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,334 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,095 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,378 |
| Merged Countries #2 | 0 | - | 4.96 | 98,732 |
| Merged Countries #6 | 0 | - | 4.90 | 72,968 |
| Merged Countries #7 | 0 | - | 4.93 | 82,236 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,089 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,644 |
| Geography by Picture - A | 0 | - | 4.39 | 60,139 |
| Geography by Picture - D | 0 | - | 4.15 | 45,562 |
| Geography by Picture - F | 0 | - | 4.31 | 50,897 |
| Geography by Picture - G | 0 | - | 4.38 | 47,868 |
| Geography by Picture - J | 0 | - | 4.16 | 38,388 |
| Geography by Picture - K | 0 | - | 4.29 | 33,062 |
| Geography by Picture - C | 0 | - | 4.31 | 56,992 |
| Geography by Picture - L | 0 | - | 4.37 | 58,851 |
| Geography by Picture - M | 0 | - | 4.14 | 40,389 |
| Geography by Picture - P | 0 | - | 4.24 | 42,361 |
| Geography by Picture - S | 0 | - | 4.38 | 46,972 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,951 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,328 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,619 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,284 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,864 |
| Longest International Borders | 0 | - | 4.99 | 264,321 |
| Countries with Three Borders | 0 | - | 4.96 | 36,353 |
