[Glossary](/glossary.md)/[Progression](/glossary/category/progression.md)

# Research

Spending a vehicle's experience to unlock its modules and the vehicles that follow it in the tree.

Also known as grind, unlocking, researching.

[Experience](/glossary/experience.md) earned in a vehicle is spent from that vehicle. It buys its own [upgrades](/glossary/module.md) first, [tracks](/glossary/tracks.md), engine, [turret](/glossary/turret.md), gun, radio, and then the next vehicles in the branch.

The unlock and the purchase are separate: research makes a vehicle available, [credits](/glossary/credits.md) buy it. A player can therefore be several vehicles ahead in research and unable to afford any of them.

## Related terms

[ExperienceThe currency earned per battle from damage, spotting, kills, capture and defence, spent on research and crew training.](/glossary/experience.md)[Tech treeA nation's chart of researchable vehicles, where each one unlocks the vehicles above it.](/glossary/tech-tree.md)[ModuleOne of a vehicle's five researchable components: suspension, engine, turret, gun and radio.](/glossary/module.md)[CreditsThe main currency, earned every battle and spent on vehicles, modules, ammunition, repairs and equipment.](/glossary/credits.md)[StockA vehicle in its starting configuration, before any module has been researched, which is usually much weaker than its final form.](/glossary/stock.md)

[Every World of Tanks term](/glossary.md)

## Navigation

- [unicum.gg](/index.md)
- [Discord](https://discord.gg/Hqbfb8YPbU)
- [GitHub](https://github.com/unicum-gg/unicum.gg)

## Indexes

- [llms.txt](/llms.txt): the API, the MCP server and the other machine-readable surfaces.
- [llms-full.txt](/llms-full.txt): the same, with every endpoint's parameters inline.
- [sitemap.md](/sitemap.md): every section of the site, down to the individual pages.