Minecraft's default tick speed is 20 ticks per second

A tick in Minecraft is one game cycle — the smallest unit of time the game engine recognizes. The default tick speed is 20 ticks per second, which means the game updates the world 20 times every second. This is the speed at which mobs move, crops grow, redstone circuits activate, and water flows. If you have never changed this setting, your world runs at this standard rate.

The 20 ticks-per-second rate is hardcoded into Minecraft's core engine and applies to both Java Edition and Bedrock Edition. You cannot see a tick counter in the game — it runs invisibly in the background. But you can measure it: if a redstone repeater is set to its minimum delay of one tick, and you count how many times it pulses in one second, you will count 20 pulses.

Key Takeaways

  • Minecraft's default tick speed is 20 ticks per second, the rate at which all game logic updates.
  • You can change tick speed only in single-player worlds using the /gamerule randomTickSpeed command, which affects crop growth and block updates but not the core 20-tick cycle.
  • Multiplayer servers run at 20 ticks per second by default and cannot be changed without server software modifications.
  • Reducing tick speed makes the game run slower and can cause lag; increasing it makes the game run faster and can cause instability.

How tick speed affects what you see in the game

Every action in Minecraft happens on a tick schedule. Mobs take one step forward every tick, so at 20 ticks per second they move smoothly across the screen. Redstone repeaters, comparators, and pistons all operate on tick delays — a repeater set to 1 tick will activate once per tick, or 20 times per second. Furnaces smelt items at a fixed rate per tick, crops grow at a fixed rate per tick, and water spreads one block per tick.

If you slow down the tick speed, all of these processes slow down proportionally. A furnace that normally smelts 10 items per second will smelt 5 items per second at half tick speed. Mobs will move more slowly. Redstone circuits will pulse more slowly. The game world itself does not change — only the speed at which it changes.

The difference between tick speed and frame rate

Tick speed and frame rate are not the same thing. Your frame rate is how many times per second your graphics card draws the screen — this is what you see in the F3 debug menu as "fps". Your tick speed is how fast the game logic runs underneath. You can have 60 frames per second while the game ticks at 20 ticks per second, and the game will still feel smooth because the graphics are interpolating between tick states.

If your frame rate drops below your tick speed, the game will feel choppy or laggy, but the game logic is still running at 20 ticks per second. If your tick speed drops (which only happens if you manually change it), the game logic itself slows down, and everything in the world moves and updates more slowly.

How to change tick speed in single-player worlds

In Java Edition single-player, you can change the random tick speed using the /gamerule command. Open the chat window with the T key and type: /gamerule randomTickSpeed 3. This changes how often the game picks random blocks to update — crops, grass, leaves, and similar blocks. The default value is 3. Setting it to 0 stops random updates entirely. Setting it to a higher number like 10 makes random updates happen more frequently.

This command does not change the core 20-tick cycle. It only changes how often the game picks random blocks to process. The actual tick speed remains 20 ticks per second. If you want to slow down the entire game, including mob movement and redstone, you would need to use server software or mods, which is not possible in vanilla single-player.

In Bedrock Edition, the randomTickSpeed gamerule works the same way. Open the chat with the / key and type the same command. The setting will persist in that world until you change it again.

Why servers always run at 20 ticks per second

Multiplayer servers in vanilla Minecraft run at exactly 20 ticks per second. This is not a setting you can change — it is built into the server software. The server sends tick updates to every player 20 times per second, and all players see the same world state at the same time (within network latency). If the server cannot keep up with 20 ticks per second because too many players are online or too many redstone contraptions are running, the server will lag, but the tick rate itself does not drop.

Some server software like Spigot or Paper includes options to change the tick rate, but this requires modifying the server code and is not a standard feature. Most public servers run at the default 20 ticks per second.

What happens if you try to change the core tick speed

Changing the core tick speed (not the random tick speed) requires either a mod or server software modifications. If you slow down the core tick speed to 10 ticks per second, the entire game runs at half speed — mobs move half as fast, redstone pulses half as fast, and furnaces smelt half as fast. This can be useful for building or debugging, but it makes the game feel sluggish and can cause desynchronization on multiplayer servers.

If you increase the core tick speed above 20, the game runs faster, but this can cause instability. Redstone circuits may behave unpredictably, mobs may move erratically, and the server may struggle to keep up. Most players and servers stick with the default 20 ticks per second for this reason.

Frequently Asked Questions

Can I change tick speed on a multiplayer server I play on?

No, not unless you own the server and have access to the server files. The server owner would need to modify the server software to change the tick rate, which is not a standard setting. Most public servers run at the default 20 ticks per second.

Does lowering random tick speed make the game run faster?

No. Lowering random tick speed only slows down how often crops grow, grass spreads, and leaves decay. The core game tick speed remains 20 ticks per second, so mobs still move at normal speed and redstone still works normally. The game will not feel faster or slower.

Why is 20 ticks per second the default?

Minecraft was designed with 20 ticks per second as the standard game cycle. This rate balances responsiveness with server performance — it is fast enough to feel smooth but not so fast that servers struggle to keep up. Changing it requires deliberate modification and is not recommended for most players.

Does my frame rate affect how fast the game ticks?

No. Your frame rate and tick speed are independent. You can have 200 frames per second while the game ticks at 20 ticks per second. The tick speed is determined by the game engine, not your graphics card.