Minimalist · Pyrewarden · Morass Games Wiki

Minimalist
Reach wave 35 using at most 2 distinct tower types.

The word that catches people out is "distinct". Twenty Radiance Radiance towers are one type. A type is a school plus a path — Radiance A and Radiance B are two different types. And the game counts every type you have ever built this game, not the ones standing now, so selling a mistake does not undo it. One stray third tower ends the attempt for the whole run.

The two to take

Radiance path A, and Chronomancy path A. The pairing is not arbitrary:

Radiance is the only school that can shoot a stealthed enemy. Stealth starts at wave 20 and nothing else in the game sees through it — a two-type run without Radiance simply stops at 20 while untargetable enemies walk past.
Their pair is S-tier. Radiance + Chronomancy is Eternal Vigil, which buffs your own towers' attack speed and stops time for the target. With only two schools on the board, every combo that fires is this one.
Radiance A brings area damage and support; Chronomancy A (Stasis) brings the crowd control that a two-type defence has no other source of.

The run, in order

Start on Wanderer's Waypoint, the starter map. 150 gold, two routes, no scaling of its own, and plenty of buildable ground — a map that is short of space will beat you long before wave 35.
Alternate the two types as you build, and keep them orthogonally touching where you can. Different-school neighbours grant a permanent adjacency bonus, and with two schools every join is the good one.
Spend on the three slots every tower has — Damage, Attack Speed, Range — before the path's own slots. The recorded run levels the weakest tower first each wave, which keeps the whole line growing rather than building one hero.
Keep building. The run below finished with 89 towers; a two-type defence wins on quantity, because it cannot win on coverage.
Clear wave 35. The writ is checked when a wave completes, so reaching 35 and dying in it earns nothing.

The recorded run

One game on a fresh profile, Wanderer's Waypoint, seed 4. It cleared wave 35 and ran out of lives in wave 38, with 653 kills, 474 synergy combos and exactly two tower types on the board the whole way.

Wave 5 on Wanderer's Waypoint with a handful of Radiance and Chronomancy towers — Wave 5. Two shapes on the board and nothing else — that is the whole discipline of this writ.

Wave 20, the wave stealthed enemies first appear — Wave 20, where stealth enters the pool. This is the wave a run without Radiance stops at.

Wave 35 with 83 towers of only two types and a combo firing — Wave 35, the qualifying wave: 83 towers, still only the two meshes, 474 combos triggered. Open the image to count the towers.

The in-game achievements screen showing Minimalist unlocked and the rest locked — The same profile's in-game ledger afterwards. Minimalist is lit; the other eighteen are not.

What breaks it

A third type, ever, at any point in the run — including one you sold.
Leaving a base tower unspecialised does not break it: a tower with no school has no type and is not counted. It also does almost nothing, so it is not a plan.
Dying in wave 35 rather than clearing it.