How to AFK Farm Cash in Slop Tower Defense on Roblox

Cash is the resource that keeps Basic Summon going in Slop Tower Defense, and the fastest way to stockpile it is not to win anything. It is to lose, quickly, over and over, without touching the keyboard. The trick is setting up a run that ends in defeat in about 20 seconds, then handing the replay clicks to a macro.

Quick answer: Load Backrooms on Endless at Nightmare difficulty, set game speed to x5, turn Auto Skip on, place no units, then loop a TinyTask macro that clicks the speed icon and the Replay button.

What the AFK farm loop pays per run

The whole method rests on one number. A failed Backrooms run on Nightmare ends on Wave 7 and still pays out, and at x5 speed with Auto Skip enabled that failure arrives almost immediately. Here is the exact configuration and what it returns.

Setting	Value
Map	Backrooms
Mode	Endless
Difficulty	Nightmare
Game speed	x5
Auto Skip	On
Units placed	None
Run ends	Defeat on Wave 7
Payout	140 Cash, 2 Gems, 1 XP
Cycle length	About 20 seconds

If runs keep landing every 20 seconds, that works out to roughly 420 Cash a minute with no input from you. The Gems trickle in too, but two per cycle means Cash is the real reason to leave this running.

What you need before you start

A Windows PC running Slop Tower Defense in windowed or full screen.
TinyTask, a small Windows macro recorder that replays mouse clicks.
A solo server, so nobody else changes the map vote.
A window position you will not move, since the macro replays fixed screen coordinates.

The macro clicks wherever it recorded, not wherever the buttons are. Dragging the Roblox window, changing resolution, or alt-tabbing to a different layout will send those clicks into empty space and break the loop.

Set up the Backrooms Endless run on Nightmare

From the lobby, walk into the solo teleport circle. This drops you into map voting on your own, so the selection you make is the one that loads.

Map selection lobby — The map voting lobby, where every available map is offered for selection. Shown at 00:23 in Ricoko Tutorial & Showcase’s video. Image: Slop TD!

Pick Backrooms from the map cards and confirm the vote. Any other map changes how long the run survives, which throws off the macro timing.

Choosing the Crossroads Map — Each map appears as a card with a vote prompt before the match loads. Shown at 00:40 in Pazzo’s video. Image: Slop TD!

Set the mode to Endless and the difficulty to Nightmare, then start the match. Nightmare is what guarantees the quick wipe on Wave 7.

Once you are in, set game speed to x5 and open Settings to toggle Auto Skip to On. Auto Skip removes the pause between waves, which is where most of the saved time comes from.

Place nothing. Leave the cursor idle and let the waves walk straight through. The run should end in Defeat on Wave 7 with 140 Cash, 2 Gems, and 1 XP on the results screen.

Record the TinyTask macro that replays the run

TinyTask only needs to reproduce two clicks per cycle, so the recording is short. Keep its floating toolbar somewhere it will not overlap the Roblox buttons you are about to click.

Open TinyTask and position the toolbar on screen. Click Preferences and check the Recording Hotkey and Playback Hotkey, setting them to keys you will not press by accident.

Still in Preferences, open Set Playback Loops and enter 9999999. That is effectively infinite, so the macro keeps cycling until you stop it yourself.

Setting TinyTask playback loops — The Set Playback Loops dialog, where the loop count is entered. Shown at 00:43 in Ricoko Tutorial & Showcase’s video. Image: Slop TD!

Start recording, then click the speed icon to set x5 and click the Replay (0/1) button on the defeat screen. Stop the recording as soon as the second click lands so no extra movement is saved.

Press the playback hotkey. TinyTask now repeats those mouse movements, bumping the speed multiplier at the start of each run and hitting Replay the moment the defeat screen appears.

How to confirm the loop is actually running

Watch two full cycles before you walk away. A working loop finishes a match roughly every 20 seconds, flashes the Defeat screen on Wave 7, and restarts on its own without you touching anything. Your Cash counter should climb by 140 each time the results screen clears.

If the game sits on the defeat screen instead of restarting, the Replay click is missing its target. Stop playback, reposition nothing, and re-record the two clicks from the same window layout.

Why the AFK loop cannot replace real wins

Every cycle here ends in a loss, and losses do not count toward wins. Code redemption in Slop Tower Defense is gated behind 10 Wins, so the Cash pile from AFK farming does nothing for you until you clear real stages the normal way.

That means equipping a proper roster before you queue up seriously. Economy units such as Freddy Trashcan keep Cash flowing during setup, while splash and single-target damage units handle what comes down the path.

Equipping towers — The inventory screen, where units are equipped before heading into a match. Shown at 00:14 in MyUsernameisDifferent’s video. Image: Slop TD!

Placement matters more than volume. Units dropped along bends and chokepoints cover the path for longer, which is the difference between a wave clearing and a wave walking past.

Placing Trappers — Units lined along the central walkway, with range circles overlapping the path. Shown at 01:31 in MyUsernameisDifferent’s video. Image: Slop TD!

Once the line holds, pour the farmed Cash into upgrades rather than more placements. Concentrated upgrades before the final wave are what actually convert a run into the win that unlocks code redemption.

Placing and Upgrading Trappers — Two units placed by the bridge exit, with the selection range circle active for upgrading. Shown at 02:30 in Pazzo’s video. Image: Slop TD!

Treat the macro as a background Cash tap and nothing more. Leave it running while you are away, then come back, spend the pile on summons and upgrades, and go earn the wins by hand.