Lately I've been playing flash games cause my attention span has gone to shit, so I'm gonna list some that I found worth playing in no particular order.
1. Kingdom Rush
Description: The kingdom is under attack! Defend your realm against hordes of orcs, trolls, evil wizards and other nasty fiends; armed with a mighty arsenal of warriors and mages of your own!
Genre: Tower Defense
Length: couple hours
http://www.kongregate.com/games/Ironhidegames/kingdom-rush2. Learn to Fly 2
Description: You were able to learn how to fly, but Icebergs stopped you and crushed your dreams. Now you’re back for revenge!
Genre: Flight (launching)
Length: less than a hour
http://www.kongregate.com/games/light_bringer777/learn-to-fly-23. Burrito Bison Revenge
Description: Burrito Bison is back for more gummy squashing action in this epic sequel! More special gummy bears, more wrestling in the ring, more doors to shatter, more powers to upgrade, more money to steal, more, more & more!
Genre: Flight (launching)
Length: couple hours
http://www.kongregate.com/games/JuicyBeast/burrito-bison-revenge4. Rebuild 2
Description: Reclaim a city from the zombie hordes while managing supplies, housing and morale. Featuring new buildings, plotlines, characters, customizable survivors with skills and equipment, new & improved art and all new hidden endings to discover.
Genre: Strategy
Length: couple hours
http://www.kongregate.com/games/sarahnorthway/rebuild-25. Elephant Quest
Description: The fight is on! Wooly has taken your precious bowler cap and now you are on a romp to go get it back! Explore the freeform world of 45 various areas in this RPG-Shooter hybrid. Complete sidequests to get power-ups, extra firepower, and experience! Navigate the ridiculous Level Up tree to become the most powerful elephant in the universe.
Genre: Platform Adventure
Length: less than a hour
http://www.kongregate.com/games/ArmorGames/elephant-quest6. Upgrade Complete
Description: This game has crummy graphics… UNTIL YOU UPGRADE THE GRAPHICS ENGINE! And no sound? UNTIL YOU BUY IT IN THE SHOP! And no mute button!? You guessed it, this game requires you to buy that as well! In fact, nearly everything in this game requires you to buy and upgrade it first. Sound confusing? Give it a go and see!
Genre: Shooter (airplane)
Length: less than a hour
http://www.kongregate.com/games/ArmorGames/upgrade-complete7. Bloons Tower Defense 4
Description: BTD4 features improved graphics, loads of new and original tower types and tons of upgrades for each tower type. Heaps of tracks, save games, career mode, sandbox mode and apopalypse mode. Bloons Tower Defense 4 will give you almost unlimited replay value
Genre: Tower Defense
Length: hours
http://www.kongregate.com/games/Ninjakiwi/bloons-tower-defense-48. Rebuild
Description: Gather survivors of the zombie apocalypse and manage food supplies, housing and morale while defending against undead attacks. Reclaim the city one square at a time and put your survivors to work scavenging for food, building houses, rediscovering technology and of course killing zombies. (simplier than Rebuild 2)
Genre: Strategy
Length: couple hours
http://www.kongregate.com/games/sarahnorthway/rebuild9. The Last Stand: Union City
Description: Scavenge, shoot and survive your way through Union City in this sprawling zombie action RPG. Play in Survivor mode for a more realistic experience where the need food and sleep will be added to your survival requirements. Or play in Run’n’Gun mode and blast your way to freedom.
Genre: Shooter Adventure
Length: couple hours
http://www.kongregate.com/games/ConArtists/the-last-stand-union-city10. The Company of Myself
Description: This is a story about a hermit.
Genre: Puzzle Platform
Length: less than a hour
http://www.kongregate.com/games/2DArray/the-company-of-myself11. Flight
Description: Throw your paper plane. Collect points. Upgrade. Save the world.
Genre: Flight (launching)
Length: less than a hour
http://www.kongregate.com/games/ArmorGames/flight12. Upgrade Complete 2
Description: The long awaited sequel is here! You thought the original had enough Upgrades?YOU WERE WRONG! This one has many, MANY more. Can you upgrade ‘em all? Starring the vocal talents of Egoraptor and Ciyfox and the art of Matt Humphreys, it’s really a treat for the senses.
Genre: Shooter (airplane)
Length: less than a hour
http://www.kongregate.com/games/ArmorGames/upgrade-complete-213. The Last Stand 2
Description: It was meant to be over. Turns out it was far from it. The mainland is being evacuated through a nearby city, make your way across the state to survive. You have 40 days… (union city and this are very different)
Genre: Shooter Defense
Length: couple hours
http://www.kongregate.com/games/ConArtists/the-last-stand-214: Anti-Idle: The Game
Description: In Anti-Idle: The Game, you don’t gain money automatically unless you turn Idle Mode on. Well, actually you do at a later point. Gain some EXP, level up. Unlock many awesome features. Earn over 500 achievements. Climb the leaderboards. Brag to many friends, and even people you don’t know. (this is a game for people with nothing to do)
Genre: no fucking clue
Length: neverending
http://www.kongregate.com/games/Tukkun/anti-idle-the-game15: Frantic Frigates
Description: Tons of upgrade, epic bosses, action-packed and easy to pick up game !
Genre: Shooter (boat)
Length: less than a hour
http://www.kongregate.com/games/BerzerkStudio/frantic-frigates16. Pandemic 2
Description: The sequel to the original game Pandemic is finally here! Bigger and better in every way. Evolve your disease, infect the world and exterminate 6.3 billion people.
Genre: Strategy
Length: couple hours
http://www.kongregate.com/games/DarkRealmStudios/pandemic-217. Diamond Hollow II
Description: Shoot, explore, upgrade, conquer enemies, defeat bosses, acquire achievements, collect gems, all in an attempt to save yourself and your gun from the clutches of the evil Professor.
Genre: Shooter Platform
Length: couple hours
http://www.kongregate.com/games/Arkeus/diamond-hollow-ii18. Balloon in a Wasteland
Description: When your balloon crash-lands in a wasteland of foul creatures, its time to survive. Upgrade your weapons, fort, and turrets while you try to fix your balloon. Balance your free time between battles so you are prepared for future waves. Try to escape as soon as you can!
Genre: Shooter Defense
Length: less than a hour
http://www.kongregate.com/games/ArmorGames/balloon-in-a-wasteland