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11th Dream is fast-paced abstract shooter by Blue Pulsar Games. Out now in Early Access on Steam!

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When doing AI in shooter games, follow a simple rule: Don't make it too good. Nobody wants to play against an aimbot with 100% map knowledge. On the other hand, bots must be still challenging and the behavior must be interesting. Here is how we approached it.

Bots against bots

The artificial intelligence has several levels. Topmost level makes decisions based on the stats and signals from the system below, for example: Gear up, find enemy, eliminate enemy.

Next layer breaks the strategy down to simpler tasks. It does all the path finding and target movement prediction.

Finally, the instructions are given to the navigation layer and targetting layer, which simulate pressing keys like human player would do.


Let's talk about the movement first.

Our bots follow hidden waypoints, which help them to reach their target and also contain information about bonuses. We place these waypoints manually, so we have fine control over the movements of the bots on the map.

Once the target waypoint is known, our bot walks from the first to the last one, steering towards target. If the next waypoint is above, the bot jumps and steers its motion mid-air to reach the destination.

Minemaster climbing

The behavior totally changes when the bot spots an enemy. It goes "off the grid", rapidly strafing and jumping. This way the bot can pursue the enemy even when there are no waypoints around. Once the target is eliminated, it returns back to the waypoint grid.

Since bullets in 11th Dream travel rather slowly, AI must predict target's movement. If we consider that the target moves constantly in one particular direction, it leads us to pretty system of equations. However, player is most likely going to strafe, jump and dodge. Therefore, we keep an average velocity and movement direction, which results in much more precise targetting.

But this behavior proved to be too good, leaving the player no chance to defend. At the same time, we wanted the AI to be really challenging. We ended up (literally) shaking with predicted target position, lowering the initial accuracy but eventually getting the perfect aim. This aiming time depends on selected AI difficulty.

Taking Apart

We hope that you find this overview of AI in 11th Dream interesting. Maybe you'll recognize the patterns while in-game next time. If you have any questions, suggestions or comments, please tell us, we are always happy to answer.

We would like to ask you to vote for 11th Dream in Steam Awards for visual style category. Every vote counts, every vote motivates us to pursue our original work.

Steam Awards

11th Dream is currently on sale, grab same difficulty for lower price! Also, you are welcome to join our Discord where we run giveaways. You can watch there how we struggle with multiplayer development and steamworks integration into ingame map editor.

Michal // Blue Pulsar Games

Weather Effects in 11th Dream

Weather Effects in 11th Dream

News 1 comment

In 11th Dream, weather plays an important role in nostalgic game atmosphere. We would like to share with the core ideas behind our implementation of weather...

Noise Map and Updated Jump

Noise Map and Updated Jump


11th Dream has received a new skirmish map - Noise. We've also tweaked jumping of characters to make the take-off smoother.

New skirmish arenas in 11th Dream

New skirmish arenas in 11th Dream


This week we are adding two new skirmish arenas to 11th Dream - Desert and Hills.

11th Dream game now on Steam

11th Dream game now on Steam


Hot fast-paced action abstract shooter 11th Dream has been released on Steam in early access.


Interesting style!

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bluepulsargames Creator

Thank you!

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