Quick Answer
An altcoin is any cryptocurrency that is not Bitcoin. The term comes from English: alt (alternative) + coin. There are thousands of altcoins — from smart contract platforms like Ethereum, to stablecoins, memecoins, and specialised tokens.
What is an altcoin?
Bitcoin was the first decentralised cryptocurrency, launched in 2009 by Satoshi Nakamoto — a pseudonym for a person or group whose true identity remains unknown. Its purpose was to enable direct digital payments, from person to person (peer-to-peer), without financial intermediaries.
All other cryptocurrencies that appeared after Bitcoin are called altcoins. Some were created as technical improvements to Bitcoin; others were built for completely different use cases — from smart contracts and decentralised finance (DeFi) to privacy, real-world asset tokenisation, or simply entertainment.
In short: If it is not Bitcoin, it is an altcoin. Ethereum, Solana, Cardano, USDT, Dogecoin — all are altcoins, however different they may be from each other.
Types of altcoins
Altcoins vary enormously in structure, purpose and utility. Here are the main categories:
💳
Payment tokens
Created for fast, low-cost financial transactions, often for international transfers. Examples: Ripple (XRP), Stellar (XLM).
⚙️
Utility tokens
Used for specific functionalities within an ecosystem — for example, paying network fees (gas fees). Examples: Ethereum (ETH), BNB.
🗳️
Governance tokens
Allow holders to vote on decisions within DAO projects — from fee changes to development direction. Examples: UNI (Uniswap), MKR (MakerDAO).
💵
Their value is pegged to fiat currencies (usually the dollar). Less speculative, used for savings and transfers. Examples: USDT, USDC.
🐕
Memecoins
Originally created as jokes or cultural phenomena, but with large communities and extreme volatility. Examples: Dogecoin (DOGE), Shiba Inu (SHIB).
🔗
Base blockchains or scalability solutions built on top of them. Examples: Solana (SOL), Polkadot (DOT), Arbitrum.
🏠
Real-world asset tokens (RWAs)
Bring tangible assets — real estate, bonds, commodities — onto the blockchain for liquidity and transparency. A rapidly expanding category.
Altcoin vs. Bitcoin — what is the difference?
| ₿ Bitcoin | 🪙 Altcoins | |
|---|---|---|
| Primary purpose | Store of value, P2P payments | Varied — smart contracts, DeFi, payments, gaming, etc. |
| Supply | Fixed — max. 21 million BTC | Variable — depends on the project |
| Stability | Relative — highest market cap | Variable — some extremely volatile |
| Adoption | Widest — recognised globally | Variable — some widely adopted, others niche |
| Technical innovation | Conservative — stability first | Fast-moving — continuous experimentation |
| Risk | Moderate — most mature crypto asset | From moderate to very high |
Advantages of altcoins
🚀
Extended functionality
Smart contracts, DeFi, dApps, gaming — altcoins transform the blockchain into an application platform.
⚡
Speed and lower costs
Solana processes 65,000 transactions per second. Litecoin is 4× faster than Bitcoin. Stellar is ideal for fast international transfers.
📈
Growth potential
Smaller market cap = greater growth potential. Risk is high, but innovative projects can deliver spectacular returns.
🌿
Energy efficiency
Proof of Stake networks such as Cardano or Tezos consume a fraction of Bitcoin’s energy.
Risks of altcoins
⚠️ Extreme volatility
Altcoins can experience swings of 20–50% or more in a single day. They are far more volatile than Bitcoin and can go to zero in the case of failed projects.
⚠️ Rug pull risk and scams
Some developers abandon projects and disappear with investor funds (rug pull). Always check the team, smart contract audits and the project’s track record before investing.
⚠️ Low liquidity
Lesser-known altcoins can be hard to buy or sell quickly. Always check an altcoin’s daily trading volume before investing significant amounts.
⚠️ Dependence on Bitcoin
When Bitcoin falls, altcoins tend to follow — often with more dramatic swings. Diversifying across altcoins reduces risk, but does not eliminate the correlation with BTC.
⚠️ Failed projects
Over 90% of altcoins launched in recent years are no longer active. Intense competition, lack of adoption and unfulfilled promises are common causes.
Frequently asked questions about altcoins
What does altcoin mean?
Altcoin literally means “alternative coin” — any cryptocurrency other than Bitcoin. The term covers a vast range of projects — from Ethereum and Solana to stablecoins and memecoins.
Is Ethereum an altcoin?
Yes, technically speaking. Ethereum is an altcoin — it is a cryptocurrency different from Bitcoin. However, due to its massive market cap and complex ecosystem, many treat it separately from “altcoins” in the general sense, speaking of “BTC, ETH and altcoins” as three distinct categories.
What are the most popular altcoins?
Are altcoins a good investment?
It depends on the project, market timing and your risk tolerance. Altcoins can offer higher returns than Bitcoin, but also larger losses. The basic rule: only invest what you can afford to lose, and research the project thoroughly before making any decision.
What is the difference between an altcoin and a token?
An altcoin typically has its own blockchain (e.g. Litecoin, Solana). A token is built on an existing blockchain (e.g. USDT on Ethereum or TRON). In practice, the terms are often used interchangeably.
What is “altcoin season” (alt season)?
“Alt season” or “altcoin season” is a period during which altcoins grow faster than Bitcoin. It typically occurs after a Bitcoin bull run, when investors rotate profits from BTC into altcoins in search of higher returns. A commonly used indicator to identify the start of an altcoin season is Bitcoin dominance. When Bitcoin’s share of the overall crypto market begins to fall, capital tends to flow into altcoins.
altcoin
cryptocurrencies
ethereum
defi
crypto investments
crypto dictionary
cryptocurrencies
ethereum
defi
crypto investments
crypto dictionary