Valence

VALENCE is a chemistry idle tower defense where you are the atom. Auto-fire at incoming radicals, oxidizers, and molecule bosses to defend your nucleus while filling your electron shells;  fuse to climb the periodic table, one element at a time, from Hydrogen to Oganesson. Every element rearms you: a new family means a new reaction, new shells, and a new build. Fail, and your run converts to research that keeps working while you're away.

Features

• 118 elements to climb — each one a different reaction and a different build
• Orbital electron defense across s, p, d, and f shells
• Family reactions — combustion, oxidation, corrosion, catalysis, and more
• Molecule boss compounds that lock fusion until you break them
• The Lab — research that runs in real time, even offline
• Flask Vault — permanent prestige buffs that carry across runs
• A 30-card loadout — weapons, relics, and reagents; duplicates level up to L5
• Early access — progress saves on your device; I'd love your feedback.

I'm a chemist and chemical engineer and as I approach the end of my career, I wanted to bridge my love of chemistry with my love of playing video games.  I hope you enjoy and would love your feedback.  I want to make this game better.