First Tier — The Spiral Staircase
The First Tier is a permanent progression system in Sell Lemons. Build a spiral staircase toward the stars — it persists across ALL Rebirths and Evolutions, making it the most permanent upgrade in the game.
Last updated: Jun 2, 2026
What is First Tier?
First Tier is an endgame progression system that unlocks a spiral staircase near the Republic area. When you purchase the First Tier button (for approximately 1 trevigintillion cash), a dramatic spiral staircase appears, leading upward toward 'the stars.' This is one of the very few purchases in the game that persists across both Rebirth and Evolution — it is truly permanent.
How to Unlock
You need approximately 1 trevigintillion cash to purchase the First Tier button.
The button is located near the Republic area of your factory.
You'll need trevigintillion-level Investors as well. Focus on maximizing Investor count before attempting.
Most players need at least Evolution 6 to accumulate the required resources.
Key Features
The staircase purchase is PERMANENT — it persists across Rebirth and even Evolution resets. This makes it one of the most valuable long-term investments.
First Tier is a prerequisite for the Ascension system (the highest meta-progression tier). You must complete the Stairway to unlock Ascension.
The staircase has buttons to purchase along the way. Some are required, some are decorative. Complete all buttons including decorations to finish the Stairway.
The spiral staircase is a dramatic visual addition to your factory, showing your progress to other players.
Connection to Ascension
Completing the First Tier Stairway is one of the prerequisites for Ascension — the ultimate meta-progression system. After completing the Stairway, you need approximately 1 trevigintillion to duo-trigintillion cash plus matching Investor levels to trigger Ascension. Ascension grants 7.77x permanent cash multiplier, +1 Forever Purchase slot, a cosmetic halo, but also increases all prices by 3.33x.
💡 Coming Soon: Burst Tier
Tips
Don't skip decoration buttons on the Stairway — they may be required to complete the path and unlock Ascension.
Start planning for First Tier resources well in advance. The trevigintillion price tag requires focused Ascend cycling.
Reach Evolution 6 before attempting First Tier. The 42x multiplier from Lime evolution significantly speeds up resource accumulation.
Related Systems
Reset your progress for permanent compounding multipliers that scale exponentially with each prestige.
SystemsTransform your lemon empire through evolutionary stages with new abilities and powerful bonuses.
SystemsUnlock special Powers that provide gameplay enhancements and permanent bonuses.
Systems