| All Country Flags of the World | 0 | - | 5.00 | 3,683,622 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,708 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,572 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,594 |
| Flags with Crescents | 0 | - | 4.98 | 170,335 |
| Country Flag Trivia | 0 | - | 4.81 | 57,432 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,203 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,880 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,867 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,527 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,526 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,092 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,304 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,483 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,028 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,622 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,833 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 146,515 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,724 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,880 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,810 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,809 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,807 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,912 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,699 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,332 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,764 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,845 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,255 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,573 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,689 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,032 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,236 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,321 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,202 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,592 |
| Flags of North and South America | 0 | - | 4.99 | 374,576 |
| Flags to Languages | 0 | - | 4.95 | 173,959 |
| Former Flags | 0 | - | 4.97 | 108,018 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,043 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,732 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,666 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,359 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 31,073 |
| 20 Random Country Flags | 0 | - | 4.99 | 615,045 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,964 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,329 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,860 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,893 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,112 |
| Flag Maths | 0 | - | 4.64 | 57,796 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,263 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,897 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,081 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,885 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,559 |
| World Coats of Arms | 0 | - | 4.99 | 64,768 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,946 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,101 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,036 |
| Similar Flags #1 | 0 | - | 4.75 | 130,323 |
| Similar Flags #2 | 0 | - | 4.74 | 137,615 |
| Emoji Flags | 0 | - | 4.35 | 44,167 |
| Countries by Road Signs | 0 | - | 4.98 | 54,059 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,784 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,365 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,534 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,204 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,008 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,028 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,576 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,280 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,353 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 47,011 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,593 |
| Countries by Picture #1 | 0 | - | 4.51 | 118,676 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,917 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,030 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,514 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,294 |
| Pixelated World Map | 0 | - | 5.00 | 143,682 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,607 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,358 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,758 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,779 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,289 |
| Cities by Satellite #1 | 0 | - | 4.36 | 81,582 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,194 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,679 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,157 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,571 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,132 |
| Places by Country - Tile Select | 0 | - | 4.32 | 14,114 |
| Geography by Picture - B | 0 | - | 4.42 | 55,684 |
| Geography by Picture - H | 0 | - | 4.50 | 58,288 |
| Geography by Picture - N | 0 | - | 4.45 | 42,260 |
| Geography by Picture - R | 0 | - | 4.56 | 41,079 |
| Geography by Picture - T | 0 | - | 4.54 | 57,910 |
| Flags of Oceania | 0 | - | 5.00 | 260,752 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,782 |
| Flags of WW1 | 0 | - | 4.60 | 38,521 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,195 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,103 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,425 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,038 |
| Boundary Waters | 0 | - | 4.92 | 88,602 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,272 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,324 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,799 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,660 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,622 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,623,356 |
| Landlocked Countries | 0 | - | 4.99 | 422,494 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 578,545 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,601 |
| Satellite Images #1 | 0 | - | 4.47 | 129,499 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,417 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,001 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,020 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,050 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,218 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,848 |
| World Capitals Quiz | 0 | - | 5.00 | 5,086,451 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,782,496 |
| Merged Countries #2 | 0 | - | 4.96 | 99,293 |
| Merged Countries #6 | 0 | - | 4.90 | 73,510 |
| Merged Countries #7 | 0 | - | 4.93 | 82,849 |
| Geography by Picture - A | 0 | - | 4.39 | 60,332 |
| Geography by Picture - D | 0 | - | 4.15 | 45,714 |
| Geography by Picture - F | 0 | - | 4.31 | 51,079 |
| Geography by Picture - G | 0 | - | 4.39 | 48,006 |
| Geography by Picture - J | 0 | - | 4.16 | 38,518 |
| Geography by Picture - K | 0 | - | 4.29 | 33,179 |
| Geography by Picture - C | 0 | - | 4.31 | 57,139 |
| Geography by Picture - L | 0 | - | 4.37 | 59,051 |
| Geography by Picture - M | 0 | - | 4.14 | 40,512 |
| Geography by Picture - P | 0 | - | 4.24 | 42,490 |
| Geography by Picture - S | 0 | - | 4.38 | 47,094 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,425 |
| Islands by Picture | 0 | - | 4.28 | 107,297 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,730 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,069 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,477 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,492 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,009 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,246 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,858 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,654 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,664 |
| Island Countries | 0 | - | 4.99 | 711,220 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,777 |
| Himalayan Countries | 0 | - | 4.95 | 138,965 |
| Andean Countries | 0 | - | 4.93 | 84,756 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,979 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,042 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,581 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,906 |
| Danube Countries | 0 | - | 4.97 | 72,084 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,104 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,483 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,430 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,907 |
| European Landlocked Countries | 0 | - | 4.99 | 147,210 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,748 |
| Countries with the Most Species | 0 | - | 4.99 | 103,293 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,863 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,627 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,743 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,587 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,295 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,722 |
| Countries in the Alps | 0 | - | 4.87 | 118,289 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,442 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,150 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,708 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,658 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,575 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,993 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,736 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,555 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,210 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,912 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,686 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,562 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,273 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,528 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,589 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,026 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,359 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,381 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,164 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,204 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,281 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,273 |
| Largest Countries By Category | 0 | - | 4.97 | 158,314 |
| Countries by Countries | 0 | - | 4.96 | 63,305 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,760 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,306 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,579 |
| Merged Country Flags | 0 | - | 4.88 | 107,000 |
