Kaboodle is a puzzler which involves finding a collection of blocks with the same color that match a given shape.

Kaipuu is a platformer by Virtanen which is heavily inspired by Seiklus and an extension to their earlier release entitled Painajainen. Power-ups can be collected for new abilities such as double jumps and pushing blocks.

Placed first in the recent Suomipelit game development competition. To save a game, simply press the down arrow key when standing right in front of the stone located at the starting point. Load your saved progress by choosing the second option from the main menu. Use the enter key to access a world map.

Kairuga is a short shooter demo by Kairos, featuring the iconic gameplay system from Treasure's Ikaruga. You can switch the polarity of your ship by pressing the X key to absorb enemy bullets with the same color and charge your special weapon. The emphasis is on scoring where destroying three enemies of the same color in a row will earn you one chain, and bonus points are awarded for getting a high number of chains.

The only drawback to an otherwise decent shmup is it's length, with only one level on showcase.

Kaiten Patissier is an action game with puzzle and platformer elements, in which players must attempt to retrieve all items in each of the fifty stages to progress. Use the X key to jump, and press the Z key when standing next to a wall surface to rotate the area.

Kaleidoscope Reef is a new action game created by the same development team who brought us Anika's Odyssey. The reef which is home to five of our aquatic friends are in danger of being destroyed by humans through pollution, and it's up to the player to rebuild their sanctuary of peace one coral at a time. This is achieved by grabbing young polyps and placing them on top of rocks, then feeding them planktons so that they may grow into corals.

The number of corals required to pass each area is indicated by a gauge on the left side of the screen, which fills up by a small margin whenever you've successfully cultivated a coral.

Kamiha is a vertical shooter consisting of two stages, with bullet patterns reminiscent of the ones found in Cave's earlier releases. Options can be used as bombs by holding down the X key, while tapping the same button releases your smart bomb at the expense of all your options.

Use the cursor keys to move your ship, and press the Z key to shoot. Options automatically regenerate when the X key is not held down.

Kamui is one of the best 2D shmup available for the PC, featuring excellent sprite designs and an unparalleled use of zoom effect to create a sense of depth.

Enemies which are not on the same level as your ship can be shot at by using the X key. Hold it for a moment, then release to zap them with lightning. Press the Z and X key at the same time to activate your special attack.

The trial version can be downloaded by clicking on the link at the bottom of the page. Highly recommended.

Kapra W: The Road to Al-De-Baran is another shooter from Ichigo-Citron, creator of Melon Squash and Feather Raid. Your character can level up to withstand more hits and cast stronger spells by gaining experience points for each stage completed.

Hold the Z key to shoot and press the X key to cast a spell. Tap the left shift key to activate your special attack, which requires a recharge after each use.

Kaptain Brawe: A Brawe New World is a new adventure series from Naphtalite Productions, featuring a slightly absentminded titular character, his sidekick and an accompanying robot.

Graphically reminiscent of classic 2D LucasArts titles, a verb coin called The Badgotron is used for interaction with objects and characters. The story kicks off with a rescue mission, but soon after Kaptain Brawe finds himself branded as a fugitive from justice for a crime he did not commit.

Karatekamania is a music rhythm game created by the developers of Mogura 2, where players are rated based on the timing and accuracy of their key presses while a song is being played in the background. Inspired by Nintendo's Rhythm Tengoku, this fan made version features slightly updated graphics, customizable settings, and even comes with an editor to facilitate the sharing of user creations.

Use the enter key, left or right mouse button to control the actions of the martial arts practitioner. Tap the space key to punch at a thrown object. Hold the same button to assume a stance, then press the up arrow key to execute a roundhouse kick. Mouse and gamepad controls are also supported.

The current build (1st style 1.7a) contains only four default levels and two songs, although new stages created by other contributors can be downloaded from Krobon Station's message board. Simply click on a link to any zip file, unzip it into the music folder and the song should be available to play from the song selection menu.