Build a 1 Obby Parts Tier List

This is the part-by-part ranking for Build a 1 Obby. The letters match the tier list hub: S for skill and troll value, A for routing and height, B for volume you always need, C for colliders you should not trust. Use this page as a shopping list, then place the pieces with how to build. If your goal is chaos, read troll layouts after the S row, not before you have a finish line.

The shop restocks. You will not always see fading platforms, lava, and jump pads in the same tray. When they appear, buy them before you spam more cubes. Cubes are B-tier because you need them, not because they are rare.

S-tier: skill expression and troll value

Part	Why it is S
Fading platforms	Force timing. A fair builder sets a readable disappear; a troll builder stacks them over lava. Either way, visitors make a decision cubes cannot ask.
Lava (as traps)	The cleanest fail state. Place it under a gap, beside a wall jump, or at the end of a fake ledge. Lava as a floor with no route is not S; lava as a consequence is.
Jump pads	Change jump distance without lying about the collider. Great for vertical shots, surprise launches, and sending people into a second read.

S parts earn their letter because they create a beat. A beat is a jump, a wait, or a launch that a visitor can practice. If your whole plot is S parts with no B filler, people bounce in 30 seconds. Mix one S beat, then a rest cube, then another S beat. That pattern is how troll courses stay funny instead of empty.

Fading platforms punish greedy sprinting. Put a solid cube before and after so the fail is the fade, not an invisible seam. Lava should be visible from the last checkpoint-style rest. Jump pads should telegraph direction: a pad into a wall is a joke once; a pad into a mid-air cube is a course.

A-tier: routing and verticality

Part	Why it is A
Ramps	Cheap height. Turn a flat cube field into a climb without jump-pad spam.
Walls	Split lanes, hide a lava pocket, or force a wall-jump read.
Half-cubes	Precision landings and micro-gaps. Better than spheres when you want a small foot, not a rolling guess.
Wall jumps	Vertical routing. They belong with walls, not with S traps, because they add a climb more than a punchline.

A-tier is how a plot stops looking like a parking lot. Ramps save cash versus stacking ten cubes. Walls let you run two difficulties in one footprint: a wide B path and a tight half-cube path. Half-cubes are the honest small landing. If you need a tiny foot, use a half-cube; do not use a sphere and call it skill.

Wall jumps raise the skill ceiling without killing as hard as lava. Teach them with a low wall first. Ghost paths sit at high A: they look S on a troll plot and look cruel on a beginner plot. If you use a ghost path, put a painted B platform beside it so a visitor can choose the safe line. That choice is the difference between a troll and a brick wall.

B-tier: volume filler you always need

Part	Why it is B
Basic cubes	The default foot. Cheap, readable, easy to rotate with R and raise with Q.
Platforms	Wider rest spots. Use them after a fade or a pad so people can breathe.
Checkered platforms	Same job as platforms, with a pattern that reads at a distance.

B parts are not a dump row. You will spend most of your cash here because a course needs floor. A plot made of only S traps has nowhere to stand. A plot made of only B cubes is a sidewalk. The rank means always buy these, not never think about them.

Paint B parts when the route turns. A painted rest cube after lava is a sign, not a cosmetic flex. Double-click to remove a cube you placed a stud too far; do not leave a broken gap and blame the visitor. Controls stay simple: R rotates, Q raises, E lowers, double-click removes. Bad B placement is still a bad plot.

C-tier: low trust for footing

Part	Why it is C
Spheres	Round colliders. People slide. Fine as a decoration or a single joke, bad as a staircase.
Cosmetic spam	Extra spheres, unreadable paint noise, and clutter that hides lava. Looks loud in a thumbnail and plays worse than a cube.

C does not mean banned. It means do not build the route out of these. One sphere as a joke after a jump pad can be funny. A tower of spheres is a refund of your visitors’ time. If you want a small landing, go back to half-cubes in A.

Shop restock and buying order

When the shop refreshes, buy in this order if cash is tight: fading platforms, lava, jump pads, then ramps and walls, then cubes until the route exists. Skip extra spheres until the finish line is in. If S parts are missing from the tray, spend on A routing and B volume; do not sit on cash waiting for a fade that might restock tomorrow. Offline earnings and visitors still pay you while you wait. That loop is covered in how to earn cash.

Gamepasses do not change a part’s letter. x2 Cash buys more of the same ranks faster. Flying Carpet helps you edit at height; it does not make a sphere trustworthy. See the gamepasses tier list for Robux order, then come back here for the tray.

Fair course versus troll course

On a fair course, S parts are tests with a rest after them. On a troll course, S parts are the joke, but you still need a finish and a way to leave. A lava pit with no jump is not S; it is a closed door. Troll obby setups work when the victim could have made it. Use the S row for that. Use B cubes to walk people into the joke. Use A walls to hide the punchline until the last stud.

If you copy a layout after visiting another plot, copy the beat density, not the sphere spam. Peak servers in late 2025 proved people will hop plots quickly. Thirteen minutes of average play means your first S beat has to happen before they leave, and your B path has to exist so they can try again.

Place parts like you are writing sentences: S is the verb, A is the clause, B is the noun, C is the doodle in the margin.