Every game is a short, self-contained challenge you can play in any order: no account, no setup. Open a game to watch a full demonstration first, then start a real run when you're ready.
Trail Switch READY TO PLAY 1 → A → 2 → B — alternate numbers and letters Errors 0 0.0s
1 A 2 B 3 C 4 D 5 E 6 F 7 G 8 H 9 I 10 J 11 K 12 L 13 Finish run
1 → A → 2 → B — alternate numbers and letters Errors 0 12.4s
1 A 2 B 3 C 4 D 5 E 6 F 7 G 8 H 9 I 10 J 11 K 12 L 13 Finish run
Reduced motion is on: this preview shows a static frame instead of an animation. Connect numbers and letters in alternating order: 1 → A → 2 → B → … → 13.
View game Level 4 Strikes 1 of 3 Last: 356 ms
Wait for green…
Finish run
Level 4 Strikes 1 of 3 Last: 356 ms
TAP!
Finish run
Reduced motion is on: this preview shows a static frame instead of an animation. Tap the instant the signal turns green: the response window tightens as levels rise.
View game
Number Recall READY TO PLAY Level 3 Digits 5 Strikes 1 of 3
Finish run
Level 3 Digits 5 Strikes 1 of 3
4 7 • • •
Enter the digits in the order shown
1 2 3 4 5 6 7 8 9 ⌫ 0 OK
Finish run
Reduced motion is on: this preview shows a static frame instead of an animation. Read a number sequence, then type it back: spans grow from 3 up to 12 digits.
View game Wave 4 of 12 Hits 26 Strikes 1 of 6
Finish run
Wave 4 of 12 Hits 26 Strikes 1 of 6
Finish run
Reduced motion is on: this preview shows a static frame instead of an animation. Hit shrinking targets before they fade: two targets are live at a time.
Coming soon — this game is not available to play yet.
Coming soon Level 2 of 5
Study the pairs — 7s
◆ → ●
▲ → ■
◐ → ✚
◇ → ○
⬟ → ◈
✦ → ▣
Finish run
Level 2 of 5 Pair 4 of 6 Matched 3
◆
Which icon was paired with this?
● ■ ✚ ○
Finish run
Reduced motion is on: this preview shows a static frame instead of an animation. Study icon pairs, then pick each partner: answers are untimed.
Coming soon — this game is not available to play yet.
Coming soon Picture Sequence COMING SOONLevel 3 Pictures 5 Strikes 0 of 3
Finish run
Level 3 Pictures 5 Strikes 0 of 3
Selected 2 of 5 — tap a filled slot to undo
🍎 🔑 3 4 5
🍎 🔑 ⭐ 🐱 🚗
Finish run
Reduced motion is on: this preview shows a static frame instead of an animation. Watch a picture sequence, then rebuild it: sequences grow from 3 up to 12 pictures.
Coming soon — this game is not available to play yet.
Coming soon Signal Control COMING SOONRound 3 of 6 · Climb
Round 3 of 6 — Climb
Eight seconds. Press to hold the signal level down.
Ready Auto-starts in 2s
This game measures button presses against a fixed, deterministic escalation curve.
Finish run
Round 3 of 6 · Climb · 4.2s Presses 23
This game measures button presses against a fixed, deterministic escalation curve.
Finish run
Reduced motion is on: this preview shows a static frame instead of an animation. Press to hold a rising meter down. This game measures button presses against a fixed, deterministic escalation curve.
Coming soon — this game is not available to play yet.
Coming soon Level 3 Misses 1 of 3
Centre arrow — left or right?
+
Left Right
Finish run
Level 3 Misses 1 of 3
Centre arrow — left or right?
Left Right
Finish run
Reduced motion is on: this preview shows a static frame instead of an animation. Answer the centre arrow, ignore the others: a two-choice directional response task with surrounding distractor arrows.
Coming soon — this game is not available to play yet.
Coming soon Colour Conflict COMING SOONLevel 2 Timeouts 0 of 3
Tap the ink colour — ignore the word.
RED
Red Blue Green Yellow
Finish run
Level 2 Timeouts 0 of 3
Tap the ink colour — ignore the word.
BLUE
Red Blue Green Yellow
Finish run
Reduced motion is on: this preview shows a static frame instead of an animation. Pick the ink colour, not the word: a colour word appears printed in an ink that may not match what it says.
Coming soon — this game is not available to play yet.
Coming soon The games have no required order or sequence. Additional games are coming soon: they cannot be played.