head to head
Teamfight Tactics asks more than Stellaris, and the gap is variance.

Optimization · Pure Optimization
A grand strategy 4X where empire optimization carries you through random crises.

Optimization · Systems & Chaos
An autobattler decided by economy curves and shop variance management.
Stellaris leans Optimization (Pure Optimization); Teamfight Tactics leans Optimization (Systems & Chaos).
Teamfight Tactics leans a little harder on execution, though the gap is small.
Stellaris
Real-time pausable with no input precision.
Teamfight Tactics
No mechanical inputs of note
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Stellaris
AI is scripted; multiplayer adds modest adaptation.
Teamfight Tactics
Scout opponents but no live adaptation
Teamfight Tactics leans clearly harder on variance.
Stellaris
Galaxy gen, anomalies, and crises vary widely.
Teamfight Tactics
Shop rolls and augment offerings swing lobbies
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Stellaris
Empire builds, fleet comps, and economy dominate.
Teamfight Tactics
Econ curves, positioning, and comps are near-solved
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.