Game Design
Simple Arcade Mechanics Explained
Arcade games look varied and are built from a small vocabulary. Eight mechanics account for nearly all of them, and most games are two or three of these combined.
1. Avoid
Something will hurt you; do not touch it. The oldest and most universal mechanic, and the only one that needs no explanation at all. Tests spatial awareness and timing. Every runner is built on it.
2. Collect
Something is beneficial; touch it. The mirror of avoid, and games that use both simultaneously create decisions, because the two objectives can be placed in tension with each other.
3. Traverse
Get from here to there across terrain that makes it non-trivial. Jumping is the usual expression. Tests spatial judgement rather than reaction, which is why platformers feel calmer than runners.
4. Time an input
Act within a window. The purest skill mechanic and the foundation of one-tap games. Its quality depends entirely on whether the window is visible, long enough, consistent and slightly forgiving at the edges.
5. Choose a position
Not when to act but where to be. Lane-switching games use this, as do collection games. It tests planning rather than reflexes, and it is the mechanic that suits touch input best.
6. Remember
Recall something no longer visible. Pairs games and sequence games. The only mechanic here where thinking longer reliably helps, and the only one with no execution component at all.
7. Recognise
Identify a pattern from partial information and respond from memory rather than from reasoning. Sits between remember and time-an-input, and is what makes authored-pattern runners deeper than random ones.
8. Manage a resource
Spend something limited - a cooldown, a life, a multiplier, time on a clock. Adds decisions to games that would otherwise be pure execution, and is usually what turns a mechanic into a game.
How they combine
| Game | Mechanics used |
|---|---|
| Cat Hop | Time an input, traverse |
| Cat Dash | Avoid, collect, time an input |
| Fish Collector | Collect, avoid, choose a position, manage a resource |
| Jungle Kitty | Traverse, avoid, collect |
| Cat Obstacle Rush | Recognise, time an input, avoid |
| Cat Memory Match | Remember |
| Magic Cat Adventure | Traverse, manage a resource, avoid, collect |
Two patterns are visible. Games with one mechanic are the most immediately playable and the shallowest. Games with four are the most demanding, and every one of them is the hardest game in its category.
Why so few mechanics is enough
Depth in arcade games comes from execution rather than from variety. Timing an input is a single mechanic with an enormous skill ceiling, because doing it consistently under rising pressure is genuinely difficult.
Adding a fifth mechanic usually makes a game harder to learn without making it deeper. Adding pressure to an existing one usually does the opposite.
Key Takeaways
- Eight mechanics - avoid, collect, traverse, time, position, remember, recognise, manage - cover nearly all arcade games.
- Avoid and collect placed in tension is the simplest way to create a decision.
- Games with one mechanic are the most playable and shallowest; four is the practical ceiling.
- Depth comes from execution under pressure, not from the number of mechanics.
- Adding pressure to an existing mechanic beats adding another one.
Frequently Asked Questions
Is a game with one mechanic too simple?
Only if the mechanic has no depth. Timing an input has a very high ceiling, which is why one-button games sustain interest.
Which mechanic is hardest to design well?
Timing, because a window that is invisible, inconsistent or shorter than human reaction time produces a game that feels unfair however good everything else is.
Can a game have too many mechanics?
For an arcade game, yes. Past three or four, learning cost rises faster than depth does.
Which mechanic suits touch screens?
Choosing a position, because pointing directly at a place is what touch does better than anything else.
What is the difference between remember and recognise?
Remember is recalling something no longer visible. Recognise is identifying something present from partial information. Pairs games use the first; pattern runners use the second.
