Hello DeltaPhysicists! \n0.7 is now live after a few more fixes from the beta, thanks for the reports and feedback as always! For new features introduced in 0.7, please refer to the beta notes .\n\n

Changes / Fixes

\n
• Adjusted Reel camera to unlock sooner, allowing player to see left\n
• Top / Reel area now stays unloaded for more of the map, which should help with performance hotspot\n
• Some optimizations to rope and Momentum wind code\n
• Other general optimizations\n
• Engine update to 2022.3.62f3, which addresses a memory leak in certain platforms\n

Hello DeltaPhysicists! \n0.7 beta is out with the changes hinted in devlog #5 , and estimated to be out in public after about a week. Reminder that game price will increase then!\n\n

Features

\n
• Map System - find out where you are using the new tab in pause menu\n
• Top area redesign - added some extra paths, overhauls some parts.\n

Changes

\n
• Sharpened some UI\n
• Tentatively changed how some timers are synced, which should prevent the conveyor belt in rotation area from clogging, after running the game for a long time. Additional syncing to be done in later updates.\n
• Gamepad now hides mouse cursor.\n

Known Issues

\n
• Certain input setups may fail to hide mouse cursor.\n
• Lower-end devices can lag while the wind area is loaded. Optimizations planned for next update hopefully fixes this.\n

Hey DeltaPhysicists, a bit late for this devlog, but very excited to share some progress to anticipate.\n\n

Map System

Future Price Increase

Reel Area Redesign

Hello DeltaPhysicists,\nThis update addresses the Unity security concern CVE-2025-59489 patched today, along with a few more persistence and other tweaks added. The usual security tip applies: be wary of suspicious pages and downloads. Demo to be updated soon.

Changes

\n
• Engine has been updated to 2022.3.62f2, along with some package updates.[/*]\n
• Adjusted some objects persist through area loading and unloading. Certain areas still require an initial \"windup\".[/*]\n
• More tweaks to planetary gears to prevent trivializing or softlocking the puzzle.[/*]\n

Hey DeltaPhysicists, \nFixed a rare issue with save backups, and added some saving improvements while at it. This will be in beta for a bit over a week to ensure no new save issues.\n\n

Changes

\n
• Explode Diagram now includes keybinds as reminder.\n
• Reduced collision of bouncy part of BumperCar (Small), to reduce uncontrollable bounce when jumping on it.\n
• Reduced width of special platforms in Gear area.\n
• Adjusted a Pulley\'s background layout, to prevent the line \"twisting\" issue.\n

Save System Upgrade - World Changes

\n
• Certain world changes, such as unlocking a shortcut, are now saved.\n
• Pulleys now lock when completed.\n
• More world changes to be implemented!\n

Hey DeltaPhysicists, \nSome major fixes and optimizations in this one. Thank you for all the feedback and reports!\n\n

Fixes

\n
• Capped a situation where reeling with upgrade causes abnormal force on the rope, which caused a physics explosion.\n
• Fixed the vehicle being missed during unloads, which let it fall inside collision.\n
• Fixed a certain wall section being incorrectly set to slippery.\n
• Increased some gear collision to continuous, which should ensure gears lock properly.\n

Changes

\n
• Adjusted weights for the pulley puzzle, increasing difficulty for the unintended solution.\n
• Background glow for save points changed to player color.\n
• Adjusted loading zones so that unloaded zones are less obvious.\n
• Reduced particle opaqueness for reduced visual noise.\n
• Many behind-the-scenes performance optimizations.\n

Hello DeltaPhysicists! 0.6 is here, marking the final map expansion! After some more tuning and optimizations, development will shift towards additional systems to improve player experience.\n\n

Map Expansion - Torque & Gears

Known Issues

\n
• Performance may stutter, especially while offscreen objects load/unload - looking to optimize this soon.\n
• A certain pulley puzzle can easily be sequence-broken; to be tuned after more feedback.\n

DeltaPhysicists, the promised devlog is here - bringing news of 0.6 in a month! Personal situation is still ongoing, so this will be a short one.\nSide note: outdated store description has been removed - new trailer will come later.\n\n

New Area - Torque & Gears

Post 0.6

\n
• features to help gameplay experience, such as minimap\n
• more backgrounds and sound to be added\n
• proper ending\n

Small patch to fix some issues and annoyances, and some performance optimizations. 0.6 devlog coming soon!\n\n

Fixes

\n
• Fixed possible rope-related NullReference error, most notably locking the game by dying in Title screen.\n

Changes

\n
• Rope camera now uses the average velocity when attached to a dynamic object, making it more stable despite the erratic movements of 2-body systems; most applicable to Plinko area objects.\n
• Plinko area balls are now heavier and not affected by wind, to help with getting to Momentum area.\n
• Object \"permanence\" - objects pulled by the player to another area will not despawn, as long as it stays with the player. Currently only activates when attached to player\'s rope, still figuring out other methods of moving the object.\n
• Force from explosion is now rounded from 360 to 16-direction. The jump to Launcher Upgrade is now more consistent.\n

Hello DeltaPhysicists! A couple of minor tweaks this time; most should be barely noticeable.
Read more about the 0.5 area in the previous post!

Update 0.5.1 Notes

• Some physics for wind currents have been balanced to enforce certain routes.
• Attempted to adjust visual particle paths for smoother & more indicative wind.
• Added missing diagram for new upgrade.
  

Hello DeltaPhysicists! Thank you for the wait - 0.5 is now available via Steam beta/branches! As with before, the plan is to be out of beta in 2 weeks.

Map Expansion - More Wind Currents

A note about development

Hello DeltaPhysicists! 0.4 has been pushed to public/live. Also took the chance to update the demo, see demo section below for details.
Below is a summary of changes you might already know from previous patch notes.

Summary of 0.4 Changes (from previous patch notes / devlogs

New Area - Rotational Mechanics

New Upgrades & Icons

Patch Notes

Air Particle Changes

• smoother wind trail by decreasing distance between vertices
• adjusted force field for smoother and more consistent path
  

Audio

• rolling SFX now also factors in linear speed; will sound quieter at lower speeds
• decreased range for some SFX, to be less audible when off-camera
  

Misc.

• added trigger to de-spawn certain objects in the Loop, to help restabilize the simulation
• slightly decreased size of some collision hitboxes, to prevent unintended physical interactions
• adjusted some more loading zones, to prevent player from seeing unloaded map parts
• fixed some misaligned graphics
  

Demo Update

What will be changed

• Spin and Rope maps are replaced by their corresponding redesigns
• updated Graphics and Audio
• bug-fixes and Physics tweaks made after the previous demo
• new save system ([u]full-version saves are NOT compatible and can break[/u])
  

What will [u]NOT[/u] be changed

later maps also will not be added; minor map tweaks may happen

Enjoy exploring the new area and mechanics!

Hey DeltaPhysicists, mostly polishing tweaks for this one. No significant bugs discovered, so will be pushing 0.4 to main/public branch next week.

Air Particle Changes

• smoother wind trail by decreasing distance between vertices
• adjusted force field for smoother and more consistent path
  

Audio

• rolling SFX now also factors in linear speed; will sound quieter at lower speeds
• decreased range for some SFX, to be less audible when off-camera
  

Misc.

• added trigger to de-spawn certain objects in the Loop, to help restabilize the simulation
• slightly decreased size of some collision hitboxes, to prevent unintended physical interactions
• adjusted some more loading zones, to prevent player from seeing unloaded map parts
• fixed some misaligned graphics
  

Hey DeltaPhysicists! Thank you for the wait - you can now play 0.4 via Steam beta/branches! The build should be relatively softlock-free, but the content is still under testing and has minor bugs. The plan is for 0.4 to be out of beta in 2 weeks (the branch will remain playable).

New Area - Rotational Mechanics

• a wide open, zero-danger area for the player to experiment with a wider range of motion
• without the correct upgrades, the player should be discouraged from getting the new upgrade
• incorporate level design for a certain new mode of transportation
  

New Known Bugs

• new mode of transportation does not work well with tight spaces - please report screenshots!
• launcher glows even without the new upgrade
  

Hello, hope everyone's having a great holiday (or day in general). The promised progress update is here, to showcase some things you can look forward to! (no game update - will still take a while).

New Area

Rotational Mechanics

Other Areas

• The area near the windy area will be a significant platforming challenge compared to current areas - the general layout is implemented, with finer details tuned for difficulty.
• The remaining major area still has implementation challenges to solve, with a possibility of redesigning the area gimmick. (Spoiler: [strike]Really hoping we can get planetary gearsets as a controllable gimmick[/strike])
  

New Upgrades & Icons

Hey all, just a small polish update to improve immersive-ness and consistency. Going to start work on new map content, but no promises on delivering before the year ends - will aim to post a devlog within a month. Happy holidays, and enjoy the update!

Additions

• Turrets launchers are now animated and display reload, similar to player launcher
• Different SFX and particle FX color to green, when hitting bouncy (green) objects
• Added SFX to "bumper cars", pulleys, and rope
  

Fixes / Adjustments

• Adjusted volume balance (with some behind-the-scenes code changes)
• Fixed unexpected stretch on ropes (rope-swinging is affected as a result)
  

Known Issues Introduced This Patch

• rope sfx contains crackle/grainy noise
  

Very excited to announce that you can now purchase DeltaPhysics!

As mentioned in the Early Access description, please note that the price will increase as more content are released. Have fun!

Hey everyone, very excited to announce that DeltaPhysics is now set to release into Early Access (EA) next week, on November 15! Here's a bit more sneak-peeks into the updates between the NextFest demo and EA release version:

General Tweaks

• fixed some movement boosts that were missing from the demo - should help controls feel more responsive
• aiming with a mouse is now continuously updated (compared to only when the mouse moves) - aiming should be more consistent (but will still have gravity-affected trajectory)
• keybind UI now have icons for controllers; KB+M will be updated later
• a few graphics tweaks to help art consistency and immersion
  

Map Updates

• Sequence breaking is now more difficult and punishing: requires 0% movement tech and knowledge to hopefully block players to getting lost in a difficult area
• Spin area changed to really focus on teaching the spin mechanic (aka Magnus effect)
• Rope / Plinko area has been redesigned and expanded to improve exploration
  

First of all, big thank you to all the players that participated and also to those who joined before then too! It's great to see so many players sequence breaking, but the confusion afterwards also showed the need for a few more iterations before the game is ready for Early Access.

NOTE: The demo is planned to stay, but will be outdated during Early Access. Demo saves are unlikely to be compatible, but the new save system should prevent save resets (not including exceptions).

(Tentative, subject to change) ROADMAP:

Before Early Access

• more robust save system, particularly the item-respawning bug
• redesigning the spin area, to hopefully better tutorial for that ability
• other movement tweaks, including preparation for more abilities (includes locking some movement options from the demo, sorry :) )
  

Early Access Launch

During Early Access

• new areas/upgrades
• mini-map system
• better audio
  

After Early Access