| All Country Flags of the World | 0 | - | 5.00 | 3,623,663 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,530,238 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,248 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,004 |
| Flags with Crescents | 0 | - | 4.98 | 168,218 |
| Country Flag Trivia | 0 | - | 4.81 | 56,261 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,825 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,779 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,374 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,309 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,679 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,054 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,521 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,701 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,393 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,200 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,144 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,999 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,987 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,782 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,031 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,118 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,889 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,594 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,069 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,441 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,830 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,980 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,960 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,269 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,457 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,587 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,193 |
| Flags of North and South America | 0 | - | 4.99 | 369,587 |
| Flags to Languages | 0 | - | 4.95 | 172,905 |
| Former Flags | 0 | - | 4.97 | 107,071 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,743 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,182 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,034 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,327 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,803 |
| 20 Random Country Flags | 0 | - | 4.99 | 607,607 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,288 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,843 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,855 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,869 |
| Flag Maths | 0 | - | 4.63 | 57,699 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,826 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,144 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,569 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,506 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,359 |
| World Coats of Arms | 0 | - | 4.99 | 64,085 |
| Similar Flags #1 | 0 | - | 4.74 | 129,418 |
| Similar Flags #2 | 0 | - | 4.74 | 136,695 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,823 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,171 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,425 |
| Emoji Flags | 0 | - | 4.35 | 43,902 |
| Countries by Road Signs | 0 | - | 4.98 | 53,336 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,211 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,089 |
| Countries by Partial Flag Images #8 | 0 | - | 4.77 | 23,041 |
| Select the World Flags | 0 | - | 4.27 | 37,523 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,503 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,705 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,161 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,815 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,957 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,770 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,321 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,578 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,103 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,529 |
| Name a Valid Country Flag | 0 | - | 4.67 | 75,132 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,056 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,282 |
| Pixelated World Map | 0 | - | 5.00 | 142,792 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,057 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,669 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,984 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,040 |
| Boundary Waters | 0 | - | 4.92 | 88,177 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,926 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,568 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,703 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,056 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,966 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,541 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,961 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,133 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,697 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,224 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,976 |
| Geography by Picture - B | 0 | - | 4.42 | 55,482 |
| Geography by Picture - H | 0 | - | 4.50 | 58,098 |
| Geography by Picture - N | 0 | - | 4.45 | 42,095 |
| Geography by Picture - R | 0 | - | 4.56 | 40,923 |
| Geography by Picture - T | 0 | - | 4.54 | 57,733 |
| Flags of Oceania | 0 | - | 5.00 | 256,597 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,374 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,659 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,343 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,716 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,153 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,109,884 |
| Flags of WW1 | 0 | - | 4.60 | 38,110 |
| Landlocked Countries | 0 | - | 4.99 | 415,961 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 559,879 |
| Satellite Images #1 | 0 | - | 4.46 | 129,144 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,108 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,750 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,747 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,871 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,590 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,776 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,315 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,261 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,190 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,448 |
| World Capitals Quiz | 0 | - | 5.00 | 5,046,412 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,577 |
| Himalayan Countries | 0 | - | 4.95 | 136,206 |
| Andean Countries | 0 | - | 4.95 | 83,295 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,589 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,798 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,287 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,910 |
| Danube Countries | 0 | - | 4.97 | 71,328 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,099 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,782 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,999 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,960 |
| European Landlocked Countries | 0 | - | 4.99 | 146,036 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,649 |
| Countries with the Most Species | 0 | - | 4.99 | 96,214 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,786 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,293 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,470 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,108 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,754 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,128 |
| Countries in the Alps | 0 | - | 4.86 | 117,241 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,828 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,736 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,204 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,655 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,491 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,199 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,893 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,946 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,741 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,274 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,317 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,176 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,669 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,931 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,941 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,590 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,843 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,378 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,119 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,630 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,401 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,777 |
| Largest Countries By Category | 0 | - | 4.97 | 157,161 |
| Countries by Countries | 0 | - | 4.96 | 62,520 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,776 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,059 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,395 |
| Merged Country Flags | 0 | - | 4.88 | 106,270 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,513 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,349 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,273 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,029 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,735,701 |
| Merged Countries #2 | 0 | - | 4.96 | 98,656 |
| Merged Countries #6 | 0 | - | 4.90 | 72,910 |
| Merged Countries #7 | 0 | - | 4.93 | 82,147 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,964 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,602 |
| Geography by Picture - A | 0 | - | 4.39 | 60,113 |
| Geography by Picture - D | 0 | - | 4.15 | 45,548 |
| Geography by Picture - F | 0 | - | 4.31 | 50,881 |
| Geography by Picture - G | 0 | - | 4.38 | 47,852 |
| Geography by Picture - J | 0 | - | 4.16 | 38,372 |
| Geography by Picture - K | 0 | - | 4.29 | 33,046 |
| Geography by Picture - C | 0 | - | 4.31 | 56,976 |
| Geography by Picture - L | 0 | - | 4.37 | 58,830 |
| Geography by Picture - M | 0 | - | 4.14 | 40,372 |
| Geography by Picture - P | 0 | - | 4.24 | 42,342 |
| Geography by Picture - S | 0 | - | 4.38 | 46,957 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,780 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,308 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,582 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,062 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,807 |
| Longest International Borders | 0 | - | 4.99 | 264,222 |
| Countries with Three Borders | 0 | - | 4.96 | 36,315 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,741 |
