A couple are play in browser but 5 are claimable:

Cupid 2.0. You no longer fly around using your silly little bow to matchmake people, you now have a futuristic plasma powered heart gun… and robots are on the receiving end this time! Run around the sci-fi factory shooting robots and collecting score in this fast-paced first-person shooter. Try explore every corner of the building dealing with the robots as you please. Smother them in hearts or blast their heads off because “All’s fair in love and war”!

Day and Knight. A small open world adventure where you play as a knight wielding a mysterious coin that can controll the time and the tides. Use the coin to solve puzzles and collect sparkling treasures.

Every Second. Think your way out of the box - use your quick-thinking to slide a way through ever more difficult puzzles in a race against the clock. This game is a mix of classic platformer and slider-puzzle style games.

Seclusion. A first-person puzzle adventure game, inspired by games like Myst & Riven. You are lost in a foreign world, far away from home and secluded in isolation from all civilization. Uncover the myths and legends surrounding the Old Painters and solve puzzles to try and find your way home.

Rivet. Explore an atmospheric, snowy world as Rivet, a cute steampunk robot, as you uncover the secrets hidden beneath the snow.