| All Country Flags of the World | 0 | - | 5.00 | 3,597,141 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,286 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,925 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,319 |
| Flags with Crescents | 0 | - | 4.98 | 167,385 |
| Country Flag Trivia | 0 | - | 4.81 | 55,835 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,298 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,389 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,803 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,961 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,560 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,050 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,680 |
| Flags that are Red & White Only | 0 | - | 4.97 | 158,025 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,461 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,661 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,514 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,528 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,250 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,627 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,712 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,501 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,187 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,748 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,221 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,633 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,701 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,324 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,633 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,676 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,906 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,998 |
| Flags of North and South America | 0 | - | 4.99 | 366,276 |
| Flags to Languages | 0 | - | 4.95 | 172,396 |
| Former Flags | 0 | - | 4.97 | 106,573 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,588 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,143 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,715 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,498 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,676 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,866 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,007 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,561 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,439 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,366 |
| Flag Maths | 0 | - | 4.78 | 57,667 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,264 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,919 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,415 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,333 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,259 |
| World Coats of Arms | 0 | - | 4.99 | 63,806 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,301 |
| Similar Flags #1 | 0 | - | 4.74 | 129,022 |
| Similar Flags #2 | 0 | - | 4.74 | 136,283 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,286 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,684 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,739 |
| Emoji Flags | 0 | - | 4.35 | 43,801 |
| Countries by Road Signs | 0 | - | 4.98 | 53,040 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,978 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,968 |
| Select the World Flags | 0 | - | 4.27 | 37,382 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,242 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,534 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,002 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,652 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,789 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,659 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,200 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,335 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,959 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,351 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,743 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,083 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,903 |
| Pixelated World Map | 0 | - | 5.00 | 142,340 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,664 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,330 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,634 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,914 |
| Boundary Waters | 0 | - | 4.92 | 88,016 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,793 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,214 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,192 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,792 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,682 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,217 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,894 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,025 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,528 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,138 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,907 |
| Geography by Picture - B | 0 | - | 4.42 | 55,392 |
| Geography by Picture - H | 0 | - | 4.49 | 58,026 |
| Geography by Picture - N | 0 | - | 4.45 | 42,038 |
| Geography by Picture - R | 0 | - | 4.55 | 40,869 |
| Geography by Picture - T | 0 | - | 4.54 | 57,658 |
| Flags of Oceania | 0 | - | 5.00 | 254,851 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,738 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,385 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,006 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,339 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,723 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,876,336 |
| Flags of WW1 | 0 | - | 4.60 | 37,902 |
| Landlocked Countries | 0 | - | 4.99 | 413,133 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 551,494 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,976 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,962 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,627 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,629 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,787 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,308 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,735 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,125 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,941 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,512 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,878 |
| World Capitals Quiz | 0 | - | 5.00 | 5,027,978 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,372 |
| Himalayan Countries | 0 | - | 4.95 | 135,155 |
| Andean Countries | 0 | - | 4.94 | 82,724 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,144 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,073 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,817 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,510 |
| Danube Countries | 0 | - | 4.97 | 71,028 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,692 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,484 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,354 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,277 |
| European Landlocked Countries | 0 | - | 4.99 | 145,697 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,106 |
| Countries with the Most Species | 0 | - | 4.99 | 95,215 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,256 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,187 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,348 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,926 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,537 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,896 |
| Countries in the Alps | 0 | - | 4.87 | 116,739 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,506 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,153 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,967 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,361 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,094 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,956 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,505 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,710 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,832 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,006 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,178 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,011 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,396 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,701 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,704 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,952 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,591 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,218 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,720 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,987 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,471 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,562 |
| Largest Countries By Category | 0 | - | 4.97 | 156,669 |
| Countries by Countries | 0 | - | 4.96 | 62,203 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,290 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,944 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,310 |
| Merged Country Flags | 0 | - | 4.88 | 105,952 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,499 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,041 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,009 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,699 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,102 |
| Merged Countries #2 | 0 | - | 4.96 | 98,420 |
| Merged Countries #6 | 0 | - | 4.91 | 72,664 |
| Merged Countries #7 | 0 | - | 4.92 | 81,913 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,657 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,469 |
| Geography by Picture - A | 0 | - | 4.39 | 60,033 |
| Geography by Picture - D | 0 | - | 4.15 | 45,475 |
| Geography by Picture - F | 0 | - | 4.31 | 50,815 |
| Geography by Picture - G | 0 | - | 4.38 | 47,776 |
| Geography by Picture - J | 0 | - | 4.16 | 38,328 |
| Geography by Picture - K | 0 | - | 4.28 | 33,005 |
| Geography by Picture - C | 0 | - | 4.31 | 56,895 |
| Geography by Picture - L | 0 | - | 4.37 | 58,735 |
| Geography by Picture - M | 0 | - | 4.14 | 40,338 |
| Geography by Picture - P | 0 | - | 4.24 | 42,291 |
| Geography by Picture - S | 0 | - | 4.38 | 46,900 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,503 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,222 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,418 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,248 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,578 |
| Longest International Borders | 0 | - | 4.99 | 263,431 |
| Countries with Three Borders | 0 | - | 4.96 | 36,152 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,577 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,627 |
