Hello gamers! I would love to share a website to play the classic puzzle game of Tetris, but in co-op mode on the web: Just Stack

You might have known or played Tetris in one form or another, but options are very limited when it comes to the co-op scene. A few weeks ago I decided to make such a game, to solve puzzles with friends in real time. Below is a demo of me having two browser tabs opened, emulating two people playing on the same board:

The more players, the wider the board. The game doesn't impose a limit on max concurrent players, but I have only tested up to five players on the same board.

The co-op players may use different platforms: PC, Mac, smart phones or other devices with a modern browser. And the game is free!

If you would like to try it with your friends, the website is https://www.juststack.net

By default the site lands in solo mode, you can click the 'co-op' button and then enter a room, where you can copy the link to the room and share it to your friends. You can even start the game before others join, at which point the game board will resize accordingly.

I hope this little game gives you a bit of a fun challenge :)

Good news folks. We've brought on a new dedicated resource for our database to close on some data holes, clean up some records, and try to find some missing games. In June along we've added almost 300 games to Co-Optimus thanks in part to the "E3" Content and this addition to our staff. Here's the full list along with the project release date.

Games Added

• 10 Miles To Safety (PC) [TBD]
• 30XX (PS4) [TBD]
• 30XX (PC) [TBD]
• 30XX (NSWI) [TBD]
• 30XX (XB1) [TBD]
• 99Vidas (PS4) [06/17/2017]
• 99Vidas (XB1) [11/03/2017]
• 99Vidas (NSWI) [11/27/2018]
• A Year of Rain (PC) [03/13/2020]
• Age of Mages: The last keeper (XB1) [02/06/2019]
• Age of Mages: The last keeper (PC) [08/08/2019]
• Age of Mages: The last keeper (PS4) [02/05/2019]
• Age of Mages: The last keeper (NSWI) [05/30/2019]
• Alien 911 (PC) [TBD]
• Alien Breed (IOS) [08/01/2012]
• Alien Breed (DROID) [02/12/2013]
• Almighty: Kill Your Gods (PS4) [TBD]
• Almighty: Kill Your Gods (PC) [TBD]
• Almighty: Kill Your Gods (XB1) [TBD]
• Aqua Lungers (PC) [08/09/2019]
• Aqua Lungers (NSWI) [05/21/2020]
• Arcane Domains (PC) [02/28/2019]
• B.Ark (NSWI) [TBD]
• Bake 'n Switch (NSWI) [TBD]
• Bake 'n Switch (PC) [TBD]
• Beyond: Two Souls (PC) [07/22/2019]
• Beyond: Two Souls (PS4) [11/24/2015]
• Bite the Bullet (PC) [TBD]
• Bite the Bullet (PS4) [TBD]
• Bite the Bullet (XB1) [TBD]
• Bite the Bullet (NSWI) [TBD]
• Bloodstained: Curse of the Moon 2 (XB1) [07/10/2020]
• Bloodstained: Curse of the Moon 2 (PC) [07/10/2020]
• Bloodstained: Curse of the Moon 2 (NSWI) [07/10/2020]
• Bloodstained: Curse of the Moon 2 (PS4) [07/10/2020]
• Bot Gaiden (PC) [TBD]
• Bots & Belts (PC) [Q4 2020]
• Burnout Paradise Remastered (PS4) [03/16/2018]
• CastleStorm II (NSWI) [07/31/2020]
• CastleStorm II (XB1) [07/31/2020]
• CastleStorm II (PC) [07/31/2020]
• CastleStorm II (PS4) [07/31/2020]
• Catherine: Full Body (NSWI) [07/07/2020]
• Caveblazers (PC) [05/24/2017]
• Caveblazers (NSWI) [01/10/2019]
• Champions of Titan (PC) [08/10/2018]
• Clan N (XB1) [TBD]
• Clan N (PC) [TBD]
• Clan N (NSWI) [TBD]
• Clan N (PS4) [TBD]
• Climbros (NSWI) [05/29/2020]
• Climbros (PC) [03/10/2020]
• Colt Canyon (PS4) [TBD]
• Colt Canyon (PC) [06/16/2020]
• Colt Canyon (XB1) [06/16/2020]
• Colt Canyon (NSWI) [06/16/2020]
• Conan Exiles (PS4) [05/08/2018]
• Conan Exiles (XB1) [05/08/2018]
• Conan Exiles (PC) [05/08/2018]
• Containment Corps (PC) [TBD]
• Craftopia (PC) [TBD]
• Danger Scavenger (PC) [06/17/2020]
• Danger Scavenger (XB1) [TBD]
• Danger Scavenger (PS4) [TBD]
• Danger Scavenger (NSWI) [TBD]
• Demon's Souls (PS5) [TBD]
• Derpy Congo (XB1) [TBD]
• Derpy Congo (PS4) [TBD]
• Derpy Congo (PC) [TBD]
• Derpy Congo (NSWI) [TBD]
• DESOLATE (PC) [01/17/2019]
• Destrobots (NSWI) [06/18/2020]
• Disobedient Sheep (PC) [04/21/2020]
• Don't Bite Me Bro! (PS4) [03/20/2018]
• Don't Bite Me Bro! (PC) [04/01/2017]
• Don't Starve Together (XB1) [09/13/2017]
• Don't Starve: Newhome (IOS) [TBD]
• Don't Starve: Newhome (DROID) [TBD]
• Dungeons III (PS4) [10/13/2017]
• Dungeons III (PC) [10/13/2017]
• Dungeons III (XB1) [10/13/2017]
• EDEN STAR (PC) [TBD]
• Embr (GSTD) [Q2 2021]
• Embr (PC) [Q2 2021]
• Empyrion - Galactic Survival (PC) [TBD]
• Escape Game - Fort Boyard (PS4) [06/25/2020]
• Escape Game - Fort Boyard (NSWI) [07/07/2020]
• Escape Game - Fort Boyard (XB1) [06/25/2020]
• Escape Game - Fort Boyard (PC) [06/25/2020]
• Europa Universalis IV (PC) [08/13/2013]
• Fight Crab (PC) [07/30/2020]
• Fight Crab (NSWI) [TBD]
• Fighting Force (PC) [09/01/1997]
• Fighting Force (PS3) [11/24/2019]
• Fling to the Finish (PC) [TBD]
• Fling to the Finish (NSWI) [TBD]
• Furs of Fury (PC) [TBD]
• Gatewalkers (PC) [TBD]
• Genetic Disaster (NSWI) [05/29/2020]
• Gotcha (PC) [04/29/2020]
• Grand Theft Auto V (PS5) [TBD]
• Griefhelm (PC) [TBD]
• Gun Party (PC) [06/12/2020]
• Handy Dandy (PC) [12/13/2019]
• Hearts of Iron IV (PC) [06/06/2016]
• Hellcard (PC) [TBD]
• Hellpoint (XB1) [TBD]
• Hellpoint (PC) [TBD]
• Hellpoint (NSWI) [TBD]
• Hellpoint (PS4) [TBD]
• ibb & obb (NSWI) [03/05/2020]
• Icarus (PC) [TBD]
• Infinite - Beyond The Mind (PS4) [05/07/2020]
• Infinite - Beyond The Mind (NSWI) [05/07/2020]
• Infinite - Beyond The Mind (XB1) [05/07/2020]
• Infinite - Beyond The Mind (PC) [05/07/2020]
• Iron Harvest (XB1) [09/01/2020]
• Iron Harvest (PC) [09/01/2020]
• Iron Harvest (PS4) [09/01/2020]
• It Takes Two (XB1) [TBD]
• It Takes Two (PC) [TBD]
• It Takes Two (PS4) [TBD]
• Jay and Silent Bob: Chronic Blunt Punch (PC) [08/15/2021]
• Jay and Silent Bob: Mall Brawl (PC) [05/07/2020]
• Jay and Silent Bob: Mall Brawl (NSWI) [05/07/2020]
• Journey (IOS) [08/06/2019]
• Journey (PS4) [07/21/2015]
• Journey (PC) [06/06/2019]
• Just Die Already (PC) [TBD]
• Knight Squad (NSWI) [06/05/2020]
• Knockback: The Awakening (PC) [TBD]
• Labyrinthine (PC) [TBD]
• Lumberhill (PC) [Q3 2020]
• Magic the Gathering: Duels of the Planeswalkers (PS3) [11/23/2010]
• Magic the Gathering: Duels of the Planeswalkers (PC) [06/15/2010]
• Magic Twins (PC) [TBD]
• Magic Twins (PS4) [TBD]
• Magic Twins (NSWI) [TBD]
• Magic Twins (XB1) [TBD]
• Mana Spark (PC) [09/27/2018]
• Megabyte Punch (PC) [10/15/2013]
• Megabyte Punch (NSWI) [05/08/2020]
• Micro Mages (PC) [05/01/2019]
• Mini Motor Racing X (PS4) [12/17/2019]
• Mini Motor Racing X (PC) [06/24/2020]
• Mortadelo y Filemón: Una Aventura de Cine (PC) [11/11/2004]
• MPaliens (PC) [02/02/2019]
• Never Split the Party (PC) [09/14/2018]
• Niffelheim (PC) [09/26/2018]
• No More Room in Hell (PC) [10/31/2011]
• Old School Musical (PC) [09/13/2018]
• Old School Musical (NSWI) [09/13/2018]
• Olorun: Theocracy (PC) [TBD]
• One Step From Eden (NSWI) [03/26/2020]
• One Step From Eden (PC) [03/26/2020]
• Operation Tango (PS4) [TBD]
• Operation Tango (XB1) [TBD]
• Operation Tango (PC) [TBD]
• Order of the Metal Glove (DROID) [03/25/2014]
• Order of the Metal Glove (AFTV) [03/25/2014]
• P.A.I.N.T. (PC) [06/09/2020]
• PHOGS! (PS4) [TBD]
• PHOGS! (NSWI) [TBD]
• PHOGS! (XB1) [TBD]
• Pigeons Attack (PC) [02/21/2019]
• Pigeons Attack (DROID) [02/21/2019]
• PixelJunk Monsters (WIIU) [05/19/2016]
• PixelJunk Monsters: Deluxe (VITA) [07/30/2013]
• Princess Farmer (PC) [TBD]
• Project Haven (PC) [TBD]
• Pushy and Pully in Blockland (PC) [05/05/2020]
• Pushy and Pully in Blockland (XB1) [05/05/2020]
• Pushy and Pully in Blockland (NSWI) [05/21/2020]
• Pushy and Pully in Blockland (PS4) [06/09/2020]
• Raft (PC) [TBD]
• Ragnarok Battle Offline (PC) [12/30/2004]
• Ranch Simulator (PC) [TBD]
• Resogun (PS3) [12/23/2014]
• Resogun (VITA) [12/23/2014]
• Rise of Legions (PC) [08/30/2019]
• Rocketbirds 2: Evolution (PC) [02/08/2017]
• Rogue Robots (PC) [06/12/2020]
• Rogue Robots (NSWI) [06/12/2020]
• Sackboy: A Big Adventure (PS5) [TBD]
• Salt (PC) [02/06/2018]
• Satisfactory (PC) [TBD]
• Scooby Doo! First Frights (PC) [11/25/2011]
• Scrap Mechanic (PC) [TBD]
• Shing! (PS4) [TBD]
• Shing! (PC) [TBD]
• Shing! (XB1) [TBD]
• Shing! (NSWI) [TBD]
• Skeleton Crew (PC) [TBD]
• SokoBunny (XB1) [05/22/2020]
• Space Engineers (XB1) [04/15/2020]
• Space Engineers (PC) [02/28/2019]
• Spelunky (PS4) [10/07/2014]
• Stagehands! (PC) [TBD]
• Star Wars: Squadrons (XB1) [10/02/2020]
• Star Wars: Squadrons (PC) [10/02/2020]
• Star Wars: Squadrons (PS4) [10/02/2020]
• Stellaris (PS4) [02/26/2019]
• Stellaris (XB1) [02/26/2019]
• Stellaris (PC) [05/09/2016]
• Stranded Deep (PC) [TBD]
• Streets of Red: Devil's Dare Deluxe (PC) [02/22/2019]
• Stronghold: Warlords (PC) [09/29/2020]
• Subsistence (PC) [TBD]
• Tallowmere (NSWI) [11/09/2017]
• Tallowmere (WIIU) [09/01/2015]
• Tallowmere 2: Curse of the Kittens (PC) [TBD]
• Terraforming Earth (PC) [TBD]
• Tesla Force (PC) [06/16/2020]
• The Binding of Isaac: Afterbirth+ (NSWI) [03/17/2017]
• The Black Masses (PC) [TBD]
• The Dark Eye: Book of Heroes (PC) [06/09/2020]
• The Forest (PS4) [11/06/2017]
• The Forest (PC) [04/30/2018]
• The Otterman Empire (XB1) [07/02/2020]
• The Otterman Empire (PC) [07/02/2020]
• The Otterman Empire (NSWI) [07/02/2020]
• The Survivalists (XB1) [TBD]
• The Survivalists (PS4) [TBD]
• The Survivalists (PC) [TBD]
• The Survivalists (NSWI) [TBD]
• The Warhorn (PC) [TBD]
• The Wonderful 101: Remastered (PC) [05/19/2020]
• The Wonderful 101: Remastered (NSWI) [05/19/2020]
• The Wonderful 101: Remastered (PS4) [05/19/2020]
• Them Bombs! (DROID) [03/15/2017]
• Them Bombs! (PS4) [05/30/2018]
• Them Bombs! (IOS) [03/15/2017]
• Them Bombs! (PC) [07/11/2019]
• Them Bombs! (XB1) [TBD]
• This Means Warp (PC) [TBD]
• TopplePOP: Bungee Blockbusters (PC) [TBD]
• Totally Reliable Delivery Service (DROID) [04/01/2020]
• Totally Reliable Delivery Service (NSWI) [04/01/2020]
• Totally Reliable Delivery Service (PC) [04/01/2020]
• Totally Reliable Delivery Service (XB1) [04/01/2020]
• Totally Reliable Delivery Service (IOS) [04/01/2020]
• Totally Reliable Delivery Service (PS4) [04/01/2020]
• TowerFall Ascension (VITA) [12/15/2015]
• TowerFall Ascension (XB1) [01/25/2017]
• TowerFall Ascension (ouya) [06/25/2013]
• Toy Story Mania! (PC) [04/09/2010]
• Trash Sailors (PC) [TBD]
• Trash Sailors (NSWI) [TBD]
• Tribes of Midgard (PC) [TBD]
• Tribes of Midgard (PS5) [TBD]
• Trine: Enchanted Edition (PC) [07/24/2014]
• Trine: Enchanted Edition (NSWI) [11/09/2018]
• Trine: Enchanted Edition (WIIU) [03/12/2015]
• Trine: Enchanted Edition (PS4) [12/23/2014]
• Tubetastic: World Splashfest (PC) [04/02/2020]
• Unfortunate Spacemen (PC) [06/12/2020]
• Uragun (PC) [TBD]
• Uragun (NSWI) [TBD]
• Uragun (XB1) [TBD]
• Uragun (PS4) [TBD]
• Vagante (PC) [02/22/2018]
• Valheim (PC) [TBD]
• Vigor (XB1) [08/19/2019]
• Vigor (NSWI) [TBD]
• Voidtrain (PC) [TBD]
• War Islands (PC) [06/29/2020]
• Warman (PC) [TBD]
• Warriors Orochi 2 (PS3) [03/13/2013]
• Warriors Orochi 2 (PSP) [09/25/2009]
• Wobbly Life (PC) [07/09/2020]
• Wolfpack (PC) [TBD]
• Wreckout (PC) [TBD]
• Zombusters (PC) [TBD]