Welcome to Bostar.io, a game inspired by diep.io and arras.io. Navigate a world filled with different shapes - squares are weak, triangles are stronger, and pentagons pack a punch, with Beta and Alpha pentagons offering even more XP. Look out for occasional Boss spawns - defeating them scores you 30,000 XP. Beware of other tanks trying to take you down, so keep your guard, survive, and rack up that XP!

Controls

Main Controls:

Arrow keys or WASD to move.

Click or hold to shoot bullets.

E for Auto-fire.

C for Auto-spin

Space to respawn.

Number keys for stats:

1 for Health Regeneration.

2 for Max HP.

3 for Body Damage. 

4 for Bullet Speed.

5 for Bullet Penetration.

6 for Bullet Damage.

7 for Reload.

8 for Movement Speed

Extra Controls: 

I to show/hide Debug Info.

F to show/hide FPS counter.

L to show/hide Leaderboard.

G to turn on/off grid background (reduces lag)

P to turn on/off player tracking on the minimap.

V to show server info (random useless feature)

H to show/hide achievements list
(As of v3.4.2)

Changelog: (As of v3.4.5)

21.11.2024: Bug fix with bullets stopping moving before dying (Caused by an undocumented feature, likely added on 25.09.2024, where bullets start to lose health towards the end of their lifespan) Added this feature to the bot too.

16.11.2024: Bug fixes with shape respawn times being the same for all shapes, and shape lists not clearing upon start.

12.11.2024: Buffed boss drone health, Optimised the background to be 384x more efficient (By only using 1 "illusion" tile.) which almost doubled FPS, bug fixes.

25.09.2024: More changes to anniversary stuff, fixed a bug where bots didn't regen, started working on a HUGE performance fix with background rendering, added health bars to bots (finally!), other bug fixes.

24.09.2024: Changes to anniversary stuff ;)

02.05.2024: Update v3 officially dropped! (also a few bug fixes)
Above is the changelog for Bostar.io v3:

Below is the changelog for Bostar.io pre-v3:
31.04.2024: Added more achievements, added a way to show/hide achievement list.

30.04.2024: Admin verification now required to do server commands, started work on adding achievements.

29.04.2024: Server moderation changes, added admin-only commands.

28.04.2024: Hid XP and Level Bars on the Menu screen, added autospin, Slight tweaks to the Thumbnail and Loading Screen, added a cloud leaderboard (L), rebinded "show server info" to V.

27.04.2024: Added an XP Multiplier, the boss no longer targets players below level 10, fixed a drone targeting fail bug, fixed a bug (where all drones spawn outside the map) by teleporting it back to the boss when outside of bounds, updated the thumbnail, updated all loading screens to include that thumbnail.

26.04.2024: The AI now takes damage from boss bullets, arena closers, and all shapes, fixed infinite boss target view distance when target is 0, added a boss drone cap, you now get recoil from drone damage, fixed a bug where a bot could still shoot if its health hovered perfectly between 1 and 0 (and still be considered dead somehow), other bug fixes

19.04.2024: The AI now takes damage from squares and triangles. 

18.04.2024: Made bigger shadow shapes more visible from farther away. 

16.04.2024: Minor changes to the loading screen, fixed boss drone direction not changing by slowing down the script 2x and doubling movement.

15.04.2024: Reworked boss drones to work using the new bot clone system, fixed boss drone AI, (However, there still remains a huge bug and idk what to do: Either drones work properly but pause for a long time, or the drones direction updates extremely slowly when targeting a bot.) random spawning scripts now adapt to any border size, updated existing connection screens and added one, tweaked a death message, bug fixes.

20.03.2024: Added an Anniversary reminder (4th May), updated the Anniversary messages.

12.03.2024: Slightly nerfed Arena Closer speed, fixed a visual bug with barrels.

08.03.2024: Added arena closers (still in progress), you now disconnect after dying from an arena closer.

07.03.2024: Fixed a bug with death blur sometimes blacking the screen on startup, increased minimum bot amount, added [1]% FPS Low counter, added occasional server closing and reset, added close time reminders, experimented with arena closers a bit.

06.03.2024: Added average fps counter, added randomness to the amount of bots that spawn, added Debug Info menu (Press "I"), bug fixes with boss drones not despawning, bug fixes with XP skyrocketing if you join too early.

01.03.2024: Improvements to the background, lighter grid layout, made the background toggleable through "G" (Since the background decreases fps by ~30%), bug fixes, (kilp added)

29.02.2024: Started work on a scrolling background.

19.01.2024: Added a movement speed buff to low level players.

17.01.2024: Bots can now damage all shapes, bot bullet damage systems updated, bug fixes, revised bot AI, bug fixes with bullet spawning again, fixed a bug where the bots did infinite damage, huge bug fix.

16.01.2024: Fixed bot shooting location finding, fixed bot AI, fixed bullet spawning for bots, bots now take damage from squares, more bug fixes, you can now level up to level 60, upgrade points are now independent from your level, changed the map size to 1500, revised shape spawning scripts to automatically adjust its spawning area based on the map size, spread out shapes to provide more space, the bot now takes damage from your bullets.

15.01.2024: Reworked body damage, changed base HP from 100 to 50, doubled aging HP increase from 1HP to 2HP per level. (In effect, made low level tanks weaker than high level tanks), removed bot 2, started work with bot cloning and reworking of the AI, made bot count to 5, SO MANY bug fixes (seriously!), a lot more additions that I can't recall.

14.01.2024: Reworked damage to the triangle & pentagon & beta pentagon & alpha pentagon (all shapes), combined mid/outer pentagon scripts into one sprite, outer pentagons now have a small chance to spawn in the middle, made it so as a bullet loses health it deals proportionately less damage, bug fixes with bot target rendering, fixed an overflow player health bug, changed the way regen works (regen speed to regen amount), added recoil after hitting shapes, body damage now affects shapes!

13.01.2024: Fixed shape respawning to work with the new damage system I made, implemented smooth camera movement while spectating.

11.01.2024: Updated the wiki and increased boss health and XP rewards. (https://sites.google.com/view/bostario/wiki)

10.01.2024: Completely reworked the way bullets do damage (to the square, for now.), Replaced stat "Bullet HP" with "Bullet Penetration"!, added AFK, lag, and "cheating" deaths ;), LOTS of bug fixes.
Above is the changelog for Bostar.io pre-v3:

Below is the changelog for Bostar.io v2: 

09.01.2024: Bug fixes with green alpha pentagon health resetting, made boss give player XP only if the player killed it, buffed boss drone speed again (It was still too easy last time because movement speed upgrade), added a message every time you kill a boss, made drones orbit the boss.

08.01.2024: v2.9.3: From now on, on national holidays (Christmas, Halloween), the game textures will change to match the holiday theme. This will start 3 days early, and finish the day after the holiday. This includes the yearly game anniversary! (May 04, 2022)

08.01.2024: v2.9.2: Revamped Bot movement AI, bug fixes with bot 2 pathfinding, buffed bot 2 bullet speed, added recoil (knockback after shooting a bullet), added natural max HP increase as you level up, updated the shape "wiki" (in description), fixed a bug with boss drones instantly despawning, made boss drones despawn if not in pursuit for too long (before, there could be infinite drones which can cause severe lag) 

06.01.2024: Equalised diagonal player movement with horizontal movement.

05.01.2024: Added death screen messages (e.g. you were shot by a player), survival XP gain now depends on level number instead of XP number, finally fixed a bug where you gain XP from shapes even when another player shot it (not you), other bug fixes, slightly increased boss drone speed, prioritized shape XP gain to the main player (If more than 1 player is shooting the same shape at the same time), made bullet speed upgrade add more speed.

06.11.2023: Added basic bullet collisions, slightly faster bullets and faster reload (Inspired from v3 tests) reload upgrade balances, bug fixes with autofire, made boss drones faster.

19.09.2023: Made bullets slow down slightly when damaging shapes, bug fixes.

12.09.2023: Fixed Max HP health increase when fully upgraded, fixed upgrade delay for faster upgrading.

23.05.2023: Defaulted player tracker to off because it's kind of op for you to know other player's locations.

16.05.2023: Greatly reduced startup lag.

08.05.2023: Bug fixes, possible new feature.

05.05.2023: Making The game widescreen to fit the whole screen.

21.04.2023: ADDED BULLET SAVE POSITIONS AND TRIGONOMETRY!!! THIS IS A HUGE STEP TO CODING THE MULTIPLAYER GAME!!! (Believe it or not, this was actually really difficult as it involves the knowledge of trigonometry. Thanks for your support!)

20.04.2023: Made the boss drones a little faster.

19.04.2023: Fixed up collisions and health on lower and higher FPS, fixed bugs with the player's damage speeds, bug fixes.

17.04.2023: Added more FPS to the game, bug fixes, map fixes, Added more AI to the bots (shape targeting), Added camera panning across other players upon death, Slightly edited the thumbnail, added AFK timeout, added server info (press L to access)

14.04.2023: Tested additions to the bot's AI.

22.03.2023: Fixed many bugs, Fixed up the boss drones and added AI to them, Made the boss spawn drones only when a player is in range, fixed health bars, added offscreen simulation.

21.03.2023: Added offscreen features.

23.02.2023: Added shadow shapes (Super rare)

20.02.2023: ADDED RARE GREEN AND ORANGE SHAPES!!! If you find one you are so lucky! (green is rare, orange is even more rare!)

18.02.2023: Made upgrading Max HP add extra health depending on your current health.

17.02.2023: Fixed a bug when the boss visuals act weirdly (The boss needs to instantly spawn to render properly, so we let this happen, and then kill it.), smoothened out the way shapes spawn and despawn, added a thumbnail.

16.02.2023: Added a boss with AI moving and targeting, added mini-map, and loads of other features (such as dark mode (0) ), lots of bug fixing, slightly nerfed boss drone health but slightly buffed drone damage.

15.02.2023: Removed unnecessary animations, imported lots of code from the old game, added bots, added more stats (only 1,2,5,6,7 work for now). 

14.02.2023: Added squares, triangles, pentagons. Made the shapes move and spin around on its axis. Made the map border. Added FPS reader. Added bullets. Fixed "Too many clones" bug. Made pentagons more likely to spawn in the middle of the map. Added bullet health and collision with shapes. Added Bullet HP (5) and Bullet Damage (6) stats. Added death screen. Added death/spawn animations.

13.02.2023: Made a silky smooth health bar, added a player.

(Started from scratch again)

Above is the changelog for Bostar.io v2:

Below is the changelog for Bostar.io v1:

04.11.2022: Bug fixes with AFK timeout, added beginning timeout. Also added a secret feature... //Developer Note: What? What secret feature? 

03.11.2022: Removed Halloween update, Fixed collision with barrels.

27.10.2022: Halloween update.

09.10.2022: Added AFK timeout.

07.10.2022: Upgrades now only show when you have points or press M so that it doesn't cover most of the screen.

06.10.2022: Changed stat names (Bullet damage>Bullet HP, Bullet Penetration>Bullet damage), slightly increased bullet lifespan, fixed death recognition.

05.10.2022: Added autospin, added infinite bosses, on-screen HP bar, fixed bullet penetration (twice), bug fixes, fixed boss spawning, mostly fixed shape despawn and drag, changed the layout, added the body damage stat, changed bullet physics, added death recognition.

04.10.2022: Fixed bullet cloning and shooting for players and bosses, shapes no longer spawn on top of you, increased initial shape limit, added a slight shake for shapes (inspired from arras.io), Added the bullet penetration stat.

22.09.2022: Remade the death screen again.

21.10.2022: Fixed autofire (Finally!), Remade the death screen.

14.09.2022: Added a shape clone limit, added hovering HP bars for enemies and the boss, made the boss harder, fixed bullet reload with the tank and enemies (but not the boss(yet)), made startup shorter(0.3s-0.1s), fixed the players HP bar to show HP as a %, not out of 100.

09.09.2022: Bug fixes, added regeneration to the boss, made the bostar.io website:(https://sites.google.com/lampton.org.uk/bostariochangelog)

08.09.2022: Added XP to the boss, fixed an XP bug, display bugs with the BOSS HP variable, Added more XP to the second enemy, fixed the XP bug AGAIN (It didn't fix properly)

07.09.2022: When you respawn, you spawn with 10% of XP you had last try, added a reset game key (R), Added the boss, then made it and its bullets stronger.

01.09.2022: You now get bigger as you level up.

30.08.2022:  Fixed some bugs, changed the screen layout, changed how bullets collide with shapes (makes it faster to kill a shape) added another AI tank, changed how enemy HP shows on the screen.

22.08.2022: Added levels up to level 45, fixed bullet rendering with enemy tanks.

17.06.2022: Fixed the HP bar again, changed XP gain system, fixed HP regeneration.

16.06.2022: Fixed the HP bar, prevented bullet spam, added more levels, added XP gain for living.

06.06.2022: Added bullet speed stat, made enemy shoot shapes, made health regeneration faster.

26.05.2022: Fixed shape respawn system, added beta pentagon.

23.05.2022: Added the Health Regeneration stat.

22.05.2022: Added reload and max HP stats, enemy tank now gives more XP, E for auto-fire, but you can't turn it off (yet). Fixed a game starting bug.

19.05.2020: Changed key for bullet damage to 6.

18.05.2020: Made the enemy stronger.

17.05.2022: Shapes are now less likely to spawn on top of you. Also added the enemy tank.

16.05.2022: Fixed a bug where you can shoot even after you die.

13.05.2020: Added bullet damage stat, a simple pentagon as a circle and later changed it into a pentagon.

12.05.2020: Added triangle, a better shape HP system, and a simple XP and HP bar.

11.05.2020: Added the square, death thingy, space or "e" to shoot controls, XP, HP.

10.05.2020: Made bullets better.

04.05.2020: Made a basic game.

© Made May 04, 2022