Best Browser Games of 2020 (The Pandemic Year)

2020 was the year browser games went mainstream because everyone needed something to do. Lockdowns sent millions of people looking for low-friction multiplayer games to play with friends over Discord. Among Us went from a quiet 2018 release to a global phenomenon. Skribbl.io became party-night software. GeoGuessr kept growing as Twitch content. Here are the browser games that defined 2020 — and which of them you can still play in 2026.

1. Among Us (2018, viral in 2020 — not a browser game)

Innersloth shipped Among Us on mobile in June 2018 and on PC later that year. It stayed small for two years. In the summer of 2020, Twitch streamers including Sodapoppin and later Disguised Toast and a wave of others started playing it on stream. The game exploded, and by September and October 2020 it was among the most-watched games on Twitch.

The format is social deduction — a group of players on a spaceship (lobbies now hold up to 15), most are crewmates doing tasks, a few are impostors sabotaging and eliminating the crew. Discussion rounds expose the impostors through accusations and alibis. It belongs in any 2020 retrospective, but note that there is no official browser version: it’s an app on mobile, PC and consoles, and the mobile version drove most of the install numbers.

2. Skribbl.io (peaked in 2020)

Skribbl.io is browser Pictionary. One player gets a word, draws it badly, the rest guess. The game had been running as a niche party tool before it became a video-call standard in 2020. Zoom drinks, Discord game nights and remote birthday parties leaned on it as an icebreaker. Free, no signup, private rooms — perfect lockdown software.

3. GeoGuessr (2013, bigger than ever in 2020)

GeoGuessr drops you on a random Google Street View location and asks where in the world you are. Anton Wallén’s 2013 game found a much bigger audience around 2020, as a growing community of streamers and competitive players turned it into Twitch-friendly content. The competitive scene (top players identifying countries from a single utility pole) became must-watch viewing.

GeoGuessr runs on a subscription model, and the free tier is limited. Some casual players bounced; the dedicated community paid up and the game has kept growing.

4. Krunker.io (2018, healthy through 2020)

Yendis Entertainment’s browser FPS was in its prime in 2020, with custom maps, a competitive scene and a busy player base. The game was a real FPS in a browser tab — WebGL graphics, custom maps, mods, competitive modes. For the FPS crowd who couldn’t (or wouldn’t) install Steam, it was the answer. FRVR acquired Krunker in 2022, and it is still playable in the browser.

5. 1v1.LOL (shut down in 2025)

JustPlay.LOL’s 1v1.LOL was a browser building-and-shooting game modeled on Fortnite’s mechanics. It found an audience of competitive players who wanted to practice building without launching Fortnite, and by 2020 it had a sizable player base of its own — including casual players who never touched Fortnite. It shut down in November 2025, so it’s part of the 2020 story but no longer playable.

6. Gartic Phone (2020)

Onrizon launched Gartic Phone in late 2020 as a digital “telephone” game. One player writes a prompt; the next draws it; the next writes a description of the drawing; the chain continues. The reveal at the end is comedy gold. Gartic Phone joined Skribbl.io as a video-call party standard.

7. Wordle (technically 2021, but the appetite starts here)

Wordle went public in late 2021, so it isn’t a 2020 game. But the habits it rode — quick browser games, shareable results, no signup — were already everywhere by the end of 2020. Worth mentioning here because the audience it found was built during the lockdown years.

8. Skribbl-adjacent party games

2020 was the year of video-call party tools. Codenames got an official free browser version, and Kahoot and Quizizz (now called Wayground) became staples of remote classrooms and quiz nights. Skribbl.io and Gartic Phone were the browser-native standouts, but the whole category grew fast.

9. Animal Crossing companion sites (2020)

Animal Crossing: New Horizons launched on Nintendo Switch in March 2020 and became one of the year’s biggest games. Browser-based companion sites — Nookazon for trading items, plus a long tail of fan-made databases and planning tools — became essential infrastructure. They weren’t games themselves, but they were browser-based and they sustained the New Horizons social play that defined early 2020.

10. Powerline.io (still running in 2020)

The Tron-meets-Slither.io neon snake game was one of the .io titles players turned to as they hunted for casual multiplayer. It wasn’t a 2020 launch, but it fit the short-session mood of the year.

11. Drawful and the Jackbox web side

Jackbox Games’ Drawful and other titles use a hybrid model — the host runs the game on Steam or a console, and players join from their phone browsers at jackbox.tv. That browser side became one of the most-used party tools of 2020. Technically not pure browser games, but the audience interaction was browser-native.

12. Cookie Clicker (still free in the browser)

Julien “Orteil” Thiennot’s 2013 browser hit Cookie Clicker was still a go-to idle game in 2020, and the browser original stayed free. A paid Steam version followed in September 2021 and introduced the game to a new wave of players who missed its first viral moment.

13. TETR.IO and other browser Tetris

2020 saw a small Tetris renaissance, with TETR.IO emerging as a serious rival to Jstris for online multiplayer. The competitive Tetris scene (Classic Tetris on the NES, Tetris 99 on Switch) drove interest in Tetris content; browser versions caught the secondary audience.

14. Slither.io and friends

The mid-2010s .io games (Agar.io, Slither.io, Diep.io, Mope.io) found new players in 2020. Pandemic boredom and the search for short-session multiplayer drove people back to the genre. None of these were 2020 launches, but they were part of the year’s rotation.

15. Roll20 and browser tabletop tools

Tabletop RPG groups moved online en masse in 2020. Roll20 runs in the browser and is free at the entry level; Foundry VTT is a paid, self-hosted app that players join from their browsers. Both became infrastructure for the year’s online D&D boom, alongside Twine-made interactive fiction.

What 2020 changed about browser games

Three things stand out about the 2020 browser game year.

Discord-friendly multiplayer became table stakes. The games that grew in 2020 were the ones you could play with friends over voice chat. Among Us, Skribbl.io, Gartic Phone, 1v1.LOL — all fit the “we’re on Discord, let’s play something together” use case.

Streaming drove adoption. Twitch and YouTube content made Among Us and GeoGuessr into phenomena. The audience that watched streams played the games. The audience that played the games watched more streams. The loop accelerated through 2020.

Low-friction party tools won. Skribbl.io and Gartic Phone beat dedicated apps because friends didn’t have to install anything. Share the room link, click it, play. The 2020 winners optimized for “everyone can join in 30 seconds” above anything else.

What happened after 2020

The Among Us boom peaked in late 2020 and the player count fell through 2021–2022. Innersloth shipped updates (new maps, roles) that kept a dedicated player base intact. The game is still active in 2026 but well below its peak.

Skribbl.io and Gartic Phone stayed evergreen video-call party tools. GeoGuessr’s competitive community grew through 2021–2024 and is now a real streaming genre.

1v1.LOL kept its Fortnite-warmup audience for years before shutting down in November 2025. Krunker.io’s player base shrank from its 2020 highs but the game remains active under FRVR.

Animal Crossing companion sites declined as New Horizons’ player base contracted.

Frequently asked questions

What was the most popular browser game of 2020?

There’s no reliable cross-site player count, but Skribbl.io is the strongest candidate among pure browser games. Among Us was the bigger 2020 phenomenon overall, though it was a mobile and PC app rather than a browser game.

Why did Among Us go viral in 2020?

The game launched in 2018 with low player counts. In the summer of 2020, streamers such as Sodapoppin and Disguised Toast started featuring it. The format — social deduction with voice chat — was perfect for pandemic-era remote friend groups. The viral curve accelerated through September and October.

Are 2020’s browser games still playable?

Most are. Skribbl.io, Gartic Phone, GeoGuessr and Krunker.io are all still running in 2026. 1v1.LOL is the big exception: it shut down in November 2025. Among Us is still active, but as an app rather than in the browser.

What’s the best 2020 browser game for parties?

Skribbl.io or Gartic Phone. Both work over Discord voice chat with no installs. Skribbl.io is faster to learn; Gartic Phone has the bigger comedy payoff. For larger groups, Among Us is still excellent if everyone has the app.

Did 2020’s browser games change the industry?

They showed that browser-native multiplayer could reach a mainstream audience. The “share a link, join a room” model that Skribbl.io and Gartic Phone relied on became the expected way to start a browser party game.

The bottom line

2020 was the year browser games stopped being a niche and became social infrastructure. Skribbl.io, Gartic Phone, GeoGuessr and Krunker all hit big new audiences during lockdowns and are still running in 2026, while Among Us showed what a party game could do even outside the browser. The shared lesson is friction: the games that grew were the ones with the lowest possible barrier between “let’s play something” and “we’re playing.” For a single-player palate cleanser between party rounds, the T-Rex Runner runs in the same browser tab — the same one-click promise the 2020 winners all embraced.

Related: Most Popular Browser Game by Year (2020–2026) · Best Browser Games of 2021 (The Wordle Year) · Best Browser Games of 2025 (Year Retrospective)