| All Country Flags of the World | 0 | - | 5.00 | 3,630,970 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,358 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,841 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,496 |
| Flags with Crescents | 0 | - | 4.98 | 168,480 |
| Country Flag Trivia | 0 | - | 4.81 | 56,427 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,004 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,930 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,562 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,854 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,401 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,835 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,171 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,688 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,807 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,587 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,330 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,329 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,079 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,064 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,895 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,117 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,206 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,966 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,664 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,150 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,493 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,880 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,045 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,032 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,351 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,546 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,673 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,236 |
| Flags of North and South America | 0 | - | 4.99 | 370,231 |
| Flags to Languages | 0 | - | 4.95 | 173,032 |
| Former Flags | 0 | - | 4.97 | 107,179 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,780 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,208 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,103 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,422 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,827 |
| 20 Random Country Flags | 0 | - | 4.99 | 608,196 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,364 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,893 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,985 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,001 |
| Flag Maths | 0 | - | 4.64 | 57,709 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,938 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,196 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,611 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,550 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,379 |
| World Coats of Arms | 0 | - | 4.99 | 64,145 |
| Similar Flags #1 | 0 | - | 4.74 | 129,509 |
| Similar Flags #2 | 0 | - | 4.74 | 136,800 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,957 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,265 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,589 |
| Emoji Flags | 0 | - | 4.35 | 43,932 |
| Countries by Road Signs | 0 | - | 4.98 | 53,428 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,259 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,107 |
| Countries by Partial Flag Images #8 | 0 | - | 4.74 | 23,530 |
| Select the World Flags | 0 | - | 4.27 | 37,572 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,567 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,728 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,195 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,860 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,995 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,792 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,347 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,648 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,134 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,566 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,216 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,857 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,205 |
| Pixelated World Map | 0 | - | 5.00 | 142,898 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,012 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,754 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,066 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,072 |
| Boundary Waters | 0 | - | 4.92 | 88,235 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,970 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,660 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,820 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,132 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,046 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,629 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,977 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,154 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,729 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,240 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,987 |
| Geography by Picture - B | 0 | - | 4.42 | 55,503 |
| Geography by Picture - H | 0 | - | 4.50 | 58,118 |
| Geography by Picture - N | 0 | - | 4.45 | 42,114 |
| Geography by Picture - R | 0 | - | 4.56 | 40,940 |
| Geography by Picture - T | 0 | - | 4.54 | 57,752 |
| Flags of Oceania | 0 | - | 5.00 | 257,036 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,513 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,709 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,422 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,794 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,251 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,171,199 |
| Flags of WW1 | 0 | - | 4.60 | 38,170 |
| Landlocked Countries | 0 | - | 4.99 | 416,758 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 562,120 |
| Satellite Images #1 | 0 | - | 4.46 | 129,181 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,143 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,782 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,781 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,887 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,654 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,784 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,377 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,352 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,302 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,552 |
| World Capitals Quiz | 0 | - | 5.00 | 5,051,222 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,982 |
| Himalayan Countries | 0 | - | 4.95 | 136,539 |
| Andean Countries | 0 | - | 4.95 | 83,509 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,773 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,032 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,441 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,039 |
| Danube Countries | 0 | - | 4.97 | 71,440 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,230 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,855 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,173 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,157 |
| European Landlocked Countries | 0 | - | 4.99 | 146,138 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,785 |
| Countries with the Most Species | 0 | - | 4.99 | 101,809 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,910 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,336 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,516 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,165 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,813 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,196 |
| Countries in the Alps | 0 | - | 4.86 | 117,342 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,914 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,926 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,260 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,751 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,834 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,262 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,997 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,999 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,814 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,335 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,371 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,206 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,735 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,008 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,018 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,736 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,904 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,434 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,260 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,059 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,596 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,838 |
| Largest Countries By Category | 0 | - | 4.97 | 157,279 |
| Countries by Countries | 0 | - | 4.96 | 62,597 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,884 |
| 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 | 106,341 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,776 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,405 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,331 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,092 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,207 |
| Merged Countries #2 | 0 | - | 4.96 | 98,725 |
| Merged Countries #6 | 0 | - | 4.90 | 72,963 |
| Merged Countries #7 | 0 | - | 4.93 | 82,233 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,086 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,644 |
| Geography by Picture - A | 0 | - | 4.39 | 60,135 |
| Geography by Picture - D | 0 | - | 4.15 | 45,560 |
| Geography by Picture - F | 0 | - | 4.31 | 50,895 |
| Geography by Picture - G | 0 | - | 4.38 | 47,867 |
| Geography by Picture - J | 0 | - | 4.16 | 38,387 |
| Geography by Picture - K | 0 | - | 4.29 | 33,061 |
| Geography by Picture - C | 0 | - | 4.31 | 56,990 |
| Geography by Picture - L | 0 | - | 4.37 | 58,850 |
| Geography by Picture - M | 0 | - | 4.14 | 40,388 |
| Geography by Picture - P | 0 | - | 4.24 | 42,359 |
| Geography by Picture - S | 0 | - | 4.38 | 46,971 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,944 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,326 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,618 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,277 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,859 |
| Longest International Borders | 0 | - | 4.99 | 264,312 |
| Countries with Three Borders | 0 | - | 4.96 | 36,351 |
