IMHO.

Tetris® Effect: Connected vs I Know Everything

Tetris® Effect: Connected and I Know Everything both land in Indie, Casual on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Indie, Casual on Steam. I Know Everything (2019) is 2 years older than Tetris® Effect: Connected (2021). I Know Everything is currently ~90% cheaper on Steam than Tetris® Effect: Connected (3.99 USD vs. 39.99 USD). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.

Which should you pick?

Choose Tetris® Effect: Connected

Choose Tetris® Effect: Connected if you want the Shared/Split Screen, Shared/Split Screen PvP, and Shared/Split Screen Co-op side of the pairing. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 5,472 Steam reviews back the pick.

Choose I Know Everything

Choose I Know Everything if it's currently about 90% cheaper on the Steam Store. I Know Everything launched in 2019.

Both Tetris® Effect: Connected and I Know Everything sit in Indie and Casual on Steam and both list Multi-player, Steam Leaderboards, and Online PvP, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.

Side-by-side comparison

Tetris® Effect: Connected vs I Know Everything — Steam metadata comparison
Tetris® Effect: Connected — Steam game coverTetris® Effect: ConnectedI Know Everything — Steam game coverI Know Everything
Released20212019
GenresIndie, CasualIndie, Casual
PlatformsWindowsWindows, macOS, Linux
Steam DeckDeck VerifiedUnrated
Price39.99 USD3.99 USD
Steam reviews94.4% positive (5,472 reviews)4 reviews
MultiplayerMulti-player, Cross-Platform Multiplayer, Online Co-opMulti-player, Cross-Platform Multiplayer, Online Co-op
DevelopersMonstars Inc., Resonair, Stage GamesNLB project

Side by side

Tetris® Effect: Connected vs I Know Everything — FAQ

Should I play Tetris® Effect: Connected or I Know Everything first?
If you want chronology, I Know Everything (2019) came out before Tetris® Effect: Connected (2021). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
Are Tetris® Effect: Connected and I Know Everything similar?
They overlap on Indie, Casual on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
Do both Tetris® Effect: Connected and I Know Everything have co-op?
Yes — both list a co-op category on Steam. Specifics differ: Tetris® Effect: Connected ships Online Co-op, Shared/Split Screen Co-op; I Know Everything ships Online Co-op, Co-op.
Does Tetris® Effect: Connected run on Steam Deck?
Yes — Tetris® Effect: Connected is rated Deck Verified by Valve. I Know Everything doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.
Tetris® Effect: Connected vs I Know Everything (2026) · imho.run