7 Wonders Duel (2 players, ages 10+): https://sevenee.mattle.online/welcome
Acquire (2-6 players, ages 12+): https://acquire.tlstyer.com/
Advanced Civilization (2-8 players, ages 12+): http://civ.rol-play.com
Agricola (1-5 players, ages 12+): http://play-agricola.com/
Azul (2-4 players, ages 8+): https://azee.mattle.online/
Backgammon (2 players, ages 8+):
Battleship (2 players, ages 8+):
Blokus (2-4 player, ages 5+): https://blokee.mattle.online/
Board Game Online (1-16 players, ages 17+): https://www.boardgame-online.com/
Brass (2-4 players, ages 14+): http://brass.orderofthehammer.com/
Century: Spice Road (2-5 players, ages 8+): https://spicee.mattle.online/
Checkers (2 players, ages 6+):
Chess (2 players, ages 6+):
Connect Four (2 players, ages 6+):
Decrypto (3-8 players, ages 12+): https://whoawhoa.github.io/decrypto/
DiceWars (1-8 players, ages 8+):
Diplomacy (2-7 players, ages 12+):
Dominion (2-4 players, ages 13+): https://dominion.games/
Draughts (2 players, ages 6+): https://www.playok.com/en/draughts/
GO (2 players, ages 8+):
Go-Moku (2 players, ages 8+):
Liar’s Dice (2-8 players, ages 8+): https://www.cyberspaces.app/liarsdice
Ludo (2-4 players, ages 5+): https://www.playok.com/en/ludo/
Makruk (2 players, ages 8+): https://www.playok.com/en/makruk/
Monopoly (2-4 players, ages 8+):
Muggins (2 players, ages 5+): https://www.playok.com/en/dominoes/
Neptune’s Pride (2-16 players): https://np.ironhelmet.com/#landing
Pente (2 players, ages 8+): https://pente.org
Risk (2-6 players, ages 10+):
Reversi (2 players, ages 8+):
Settlers of Catan (3-4 players, 10+):
Shadow Hunters (4-8 players, ages 10+): http://www.shadowhunters.live/
Shogi (2 players, ages 8+): https://www.playok.com/en/shogi/\
Skull (3-6 players, ages 10+): https://skull.games/
Splendor (2-4 players, ages 10+): https://spendee.mattle.online/
Stratego (2 players, ages 8+):
Tak (2 players, ages 12+): https://www.playtak.com/
Terra Mystica (2-5 players, ages 12+): https://terra.snellman.net/
Through the Ages (2-4 players, ages 12+): http://boardgaming-online.com/
Xiangqi (2 players, ages 8+): https://www.playok.com/en/xiangqi/
Yahtzee (2-10 players, ages 6+):
3-5-8 (3): https://www.playok.com/en/358/
500 (2-6 players, 8+): https://www.trickstercards.com/home/500/
A standard deck of cards: http://playingcards.io/game/standard-deck
Barbu (4 players, ages 10+): https://www.playok.com/en/barbu/
Bridge (4 players, ages 12+):
Canasta (2-6 players, ages 12+): https://www.playok.com/en/canasta/
Cards Against Humanity (4-30 players, ages 17+):
Crazy 8’s (2-5 players, ages 4+): http://playingcards.io/game/crazy-eights
Cribbage (2-4 players, ages 10+):
Durak (2-6 players, ages 8+): https://www.playok.com/en/durak/
Euchre (4 players, ages 8+):
Fish (6): https://playfish.herokuapp.com/
Game of Thrones LCG (2-4 players, ages 12+): https://theironthrone.net/
Gin Rummy (2 players, ages 8+): https://www.playok.com/en/ginrummy/
Go Fish (2-6 players, ages 4+: http://playingcards.io/game/go-fish
Godfield (2-9 players): https://godfield.net/
Hearts (4 players, ages 8+):
Hanabi (2-5 players, ages 8+): https://hanabi.live/
Monopoly Deal: CoViD-19 Edition (2-30, ages 8+): https://covidopoly.io/
Oh Hell (4 players, ages 10+):
Pairs (2-8 players, ages 6+): http://playingcards.io/game/match-up
Pinochle (2-4 players, ages 10+):
Pitch (2-4 players, ages 12+): https://www.trickstercards.com/home/pitch/
Poker (2-9 players, ages 12+):
Set (1-20 players, ages 6+): https://setwithfriends.com/
Skat (3 players, ages 10+): https://www.playok.com/en/skat/
Spades (4 players, ages 10+):
Switch (2-4 players): https://www.playok.com/en/switch/
Uno (2-10 players, ages 6+):
Whist (2-4, ages 12+): https://www.trickstercards.com/home/whist/
Wizard (3-6 players, ages 10+): www.wizardcards.com/portal.php
Android: Netrunner LCG (2 players, ages 14+): https://www.jinteki.net/
Keyforge (2 players, ages 14+): https://thecrucible.online/
Legend of the Five Rings (2-8 players, 12+): https://jigoku.online/
Yu-Gi-Oh (2+, ages 8+): https://www.duelingbook.com
Board Game Collections:
Board Game Arena: http://boardgamearena.com
Boardgamecore: http://play.boardgamecore.net/
BoardSpace: www.boardspace.net/english/index.shtml
Tabletopia: https://www.tabletopia.com/
Triqqy: https://triqqy.com
Vassal: www.vassalengine.org
Yucata: https://www.yucata.de/en
Card Game Collections:
Cardzmania: https://www.cardzmania.com/games/
Classic Game Collections:
Solo Game Collections:
Cool Math Games: https://www.coolmathgames.com/
Orisinal: http://www.ferryhalim.com/orisinal/
Game Design: https://www.gamedesign.jp/index_en.html
Video Game Collections:
Online Video Game Console: https://www.airconsole.com/
Houseparty (3+): https://app.houseparty.com/login
A Fake Artist Goes to New York (5-10 players, ages 8+):
Pictionary (3-16 players, ages 8+):
Telestrations (4-8 players, ages 8+):
Tic-Tac-Toe (2 players, ages 4+): https://papergames.io/en/tic-tac-toe
Ultimate Tic-Tac-Toe (2 players, ages 6+): www.bejofo.net/ttt
Adventure Quest Worlds: https://www.aq.com/
Battle Royale :
Club Penguin:
Dragon Fable: https://www.dragonfable.com/
Dungeons and Dragons: https://roll20.net/
Hordes: https://hordes.io/
Krunker: https://krunker.io/
Liero: https://www.webliero.com/
Pokemon Showdown: https://play.pokemonshowdown.com/
RuneScape: https://www.runescape.com/splash
TL; DR eat people, get big:
ToonTown: https://www.toontownrewritten.com/
Warframe: https://www.warframe.com/
Fishbowl (4-20 players, ages 5+: https://fishbowl-game.com/
Kings (2-8 players, ages 21+): https://www.cyberspaces.app/kings
QuiqWit (2-12 players, ages 17+): https://www.qwiqwit.com/room/none/
Wavelength (2-12 players, ages 14+):
Enigmatic Caper: https://enigmaticaper.tumblr.com/
Union of Recorded Lives: https://bit.ly/UnionRL
Ultra Mega Super Death Escape Room: https://bit.ly/UMSDER
Hogwarts Digital Escape Room: https://bit.ly/HogwartsEscape
EnChambered: https://www.enchambered.com/puzzles/
Political Murder Mystery Dinner (6 players): https://bit.ly/PoliticalMurderMysteryDinner
Avalon (5-10, ages 13+):
Coup (2-6 players, ages 13+):
Deception: Murder in Hong Kong (4-12 players, ages 14+):
Inhuman Conditions (2 players, ages 12+): http://interrogation.ftwinston.com/
Love Letter (2-4 players, ages 10+): https://netgames.io/games/love-letter/
One-Night Werewolf (3-10 players, ages 8+):
Spyfall (3-8 players, ages 13+):
The Resistance (5-10 players, ages 13+):
Town of Salem (7-15 players, ages 8+): https://www.blankmediagames.com/
Traditional Mafia (6-16 players, ages 8+):
Traditional Werewolf (8-24 players, ages 8+): https://werewolv.es/
Black Room: https://cass.itch.io/blackroom
Bingo: Coronavirus Edition (all ages): http://manfrancisco.com/coronabingo/
Capture the Flag:
Collections:
OnlineSoloGames: http://www.onlinesologames.com/
OnlineDominoGames: http://www.onlinedominogames.com/
Coloring Book Collection: http://www.colorthebe.com/
Crosswords:
Fallen London: https://www.fallenlondon.com/
Incremental Games:
A Dark Room: http://adarkroom.doublespeakgames.com/
Cookie Clicker: http://orteil.dashnet.org/cookieclicker/
Candy Box: https://candybox2.github.io/
Universal Paperclips: https://decisionproblem.com/paperclips
Logic Games:
Mahjong Solitaire: https://www.playok.com/en/mahjong/
Minesweeper: http://the-minesweeper.herokuapp.com/index.html
Pairs: http://visualistchallenge.com/
Solitaire: https://cardgames.io/solitaire/
Text-Based Adventures: http://textadventures.co.uk
Neopets : https://www.neopets.com/
Typeracer: https://play.typeracer.com/
BPtrivia: https://bptrivia.com/
Jeopardy: https://jeopardylabs.com/
Kahoot: https://kahoot.com
Multiplayer Trivia: https://www.multiplayertrivia.com
Quizbowl: https://protobowl.com/
Quizwitz: https://www.quizwitz.com/en/party
Sporcle: https://www.sporcle.com/
Boggle (1-8 players, ages 8+):
City-Country-River (2-20): https://citycountryriver.net/
Codenames (2-20 players, ages 14+):
Jairagrams (1-8 players, ages 7+): http://anagrams.jonmarkgo.com/
Just One (3-7 players, ages 8+): https://runetiera.com/one
Scattergories (2-20 players, ages 12+):
Scrabble (2-4 players, ages 10+):
Taboo (4-10 players, ages 10+): https://playtaboo.com