Torchlight: Infinite Tartarus Solver Guide: How to Maximize Rainbow Nodes

To maximize rainbow nodes during the Tartarus mechanic in Torchlight: Infinite, use the community Tartarus Simulator (blahdot3h.github.io/tartarus-simulator) to calculate tile placements before committing pieces in-game. The web tool runs algorithmic permutations across your available tiles and grid layout to identify the exact placement order needed to trigger multi-node conversions and reach top reward payouts.

Setting Up the Solver Interface

Open the simulator in a web browser before running your Netherrealm maps. Depending on your display hardware, configure your setup to make referencing the tool seamless:

Dual-Monitor Setup: Keep the simulator open on your secondary screen adjacent to your active game client so you can mirror coordinates without minimizing.
Single-Monitor Setup: Set your in-game display mode to Borderless Windowed. This lets you alt-tab between the client and your browser without crashing or interrupting the game engine.
Resolution Check: Ensure the grid aspect ratio and layout in the simulator match your in-game display so coordinate positions align accurately with your encounter board.

Inputting the Tartarus Board State

When you encounter a Tartarus board, stop before placing any inventory tiles. The solver requires an accurate initial board state to compute valid conversion chains.

Assign Node Affinities: Click the matching grid coordinates on the simulator to assign the colors and element types displayed on your in-game screen.
Mark Static Blockers: Designate pre-rolled obstacles or fixed boundary nodes so the solver treats them as impassable.
Set Available Inventory Tiles: Enter the exact reserve pieces and directional modifiers currently in your bag.

Verify the entered board matches your screen before running the calculation. An incorrect affinity or misplaced blocker will produce an invalid chain in-game.

Executing the Placement Sequence

After entering the board state, run the solver to generate a sequential placement roadmap. The tool ranks potential layouts by their projected rainbow node yields.

Step	Action	Objective
1. Verify Seed	Inspect the suggested layout offering the highest rainbow count.	Confirm your inventory contains every required tile piece.
2. Anchor Bridges	Place foundational connecting tiles starting from your entry point.	Open the required pathways for multi-node conversion lines.
3. Insert Conversions	Place affinity-shifting tiles into the designated intersection slots.	Trigger simultaneous color flips across adjacent connected lines.
4. Close the Chain	Lay down terminal pieces at the end of the calculated paths.	Lock the connected clusters into completed rainbow reward nodes.

Always place tiles in the exact order generated by the solver. Certain color transformations depend strictly on sequencing, and placing a bridge piece out of order can lock out downstream conversion paths.

When to Use the Solver

Running every low-tier Tartarus encounter through the simulator will slow down your overall mapping pace. Balance solver usage with mapping speed:

Skip Low-Yield Boards: For standard, low-tier encounters with minimal base rewards, place tiles manually using basic affinity connections to keep your clear speed high.
Solve High-Roll Encounters: When encountering boards with pre-existing rare reward chests, large grid dimensions, or high-tier multipliers, stop and run the full solver to ensure you hit the maximum possible reward ceiling.

Free Torchlight: Infinite Codes

Current active codes and how to redeem them.

View Codes

Sarah Williams

Sarah specializes in RPG and collection games, explaining team building, character growth, and beginner-friendly ways to avoid expensive early mistakes.